Introduction

A quick Austronesian word family inspired by my friend Kai's birthday: Malayo-Polynesian *tasik: "sea, coastal water, saltwater, tide" -> Hawaiʻian kai: "sea, saltwater, coast, tide".

The Oceanic compound *taqu-tasi: "expert sailor" (lit. "sea-able, sea-knowing") is such a cool word, I included Austronesian *tsaqu: "to know how, to be able", too!

Edited to add: In Moana 2 (Nov 2024), when Moana is addressed as tautai: "master wayfinder", that is this compound.

Full Text

• Malayo-Polynesian *tasik sea, coastal water, saltwater, tide

  • Bornean

    • Barito

      • Malagasy taiky sea dialectic
  • Chamorro tasi sea
  • Kawi 𑼡𑼱𑼶𑼒𑽁 tasik sea, ocean

    • Javanese ꦠꦱꦶꦏ꧀ tasik sea, ocean literary
  • Malayo-Sumbawan

    • Bali tasik salt
    • Malayic *tasik

      • Iban tasik sea
      • Malay tasik lake
  • Philippine *tasik

    • Cebuano tasik brine
    • Tagalog tasik saltwater, brine, brining
  • Berau Gulf

    • Mor ati
    • Kokoda tai water
  • Timoric

    • Tetun tasi
  • Oceanic *tasi

    • Admiralty Islands

      • Loniu tas
    • Fijian taci
    • Fijian tai coast, seashore
    • Micronesian

      • Kiribati tari
    • Polynesian *tai sea, saltwater, tide

      • Niuafoʻou tai / tahi sea, sea water, lagoon
      • Nuclear Polynesian *tai

        • Samoic *tai

          • Samoan tai tide, sea
          • Tokelauan tai sea, tide
        • Eastern Polynesian *tai

          • Rapa Nui tai sea
          • Marquesic *tai

            • Hawaiʻian kai sea, saltwater, coast, tide
            • Marquesan tai sea, salt water, seaward
            • Marquesic *paka-tai salt lit. "dried salt water"

              • Hawaiʻian paʻakai salt
              • Marquesan pakatai / paʻatai salt
          • Tahitic

            • Tahitian tai sea
            • Māori tai sea
          • Eastern Polynesian *kiri-a-tai surface of the sea, horizon

            • Marquesic

              • Hawaiʻian ʻilikai surface of the sea, horizon, horizontal
            • Tahitic

              • Tahitian ʻiriātai surface of the sea, horizon
        • Nuclear Polynesian *tafa-tai seaside, coast, shore

          • Samoic

            • Tuvaluan tafatai / tafaatai seashore
          • Eastern Polynesian *tahatai

            • Rapa Nui tahatai beach, shore
            • Marquesic

              • Hawaiʻian kahakai beach, shore
              • Marquesan taha tai / tahatai seaside, beach
            • Tahitic

              • Māori tahatai shore
              • Tahitian tahatai seaside
        • Nuclear Polynesian *pale-tai foredeck, splashboards lit. "sea-guard"

          • Samoic *pale

            • Samoan pale bow of a canoe
            • Tuvaluan pale-galu foredeck, splashboards
          • Eastern Polynesian *pale-tai

            • Marquesic

              • Hawaiʻian pale kai railing on a ship, breakwater
            • Tahitic

              • Māori pare-tai splashboards
              • Tahitian paretai a refuge at sea, to take refuge at sea
      • Outlier Polynesian

        • Anuta tai water over a reef
        • Takuu tai sea, tide, sea water
      • Tongic

        • Tongan tahi sea, ocean, beach, tide
      • Polynesian *tai-tai salty, brackish

        • Nuclear Polynesian

          • Samoic

            • Tuvaluan taitaia salty, to smell of salt water, to be covered in salt water
          • Eastern Polynesian

            • Marquesic

              • Marquesan taitai salty, brackish, bitter
            • Tahitic

              • Māori mātaitai salty, brackish
              • Tahitian taitai salty, brackish, bitter
        • Tongic

          • Tongan taitai brackish
      • Polynesian *ŋaa-tai seawards, at the sea, coast

        • Nuclear Polynesian

          • Samoic *ŋaa-tai

            • Samoan gaatai towards the sea
        • Outlier Polynesian

          • Anuta gatai / gaatai towards the sea
          • Takuu naatai flotsam
    • Southeast Solomonic

      • Bughotu tahi
    • Oceanic *taqu-tasi sea-farer, expert sailor lit. "sea-able, sea-knowing"

      • Polynesian

        • Tongic

          • Tongan toutai fisherman irregular vowel
        • Nuclear Polynesian

          • Samoic

            • Samoan tautai master fisherman, captain
            • Tokelauan tautai master fisherman, captain, to steer, to direct
          • Eastern Polynesian

            • Tahitic

              • Tahitian tautai a fishing technique
        • Outlier Polynesian

          • Anuta tautai sea expert
          • Takuu tautai fishing leader, shark-fishing equipment
• Austronesian *tsaqu to know how, to be able

  • Paiwan tsaqu to know, to be able

    • Paiwan ki-tsaqu-an to practice, to learn a skill
  • Malayo-Polynesian *taqu to know how, to be able

    • Kawi 𑼡𑼲𑼸 tahu skilled, practiced, trained
    • Malayo-Sumbawan

      • Bali tahu
      • Chamic *thɔw

        • Aceh thée
        • Tsat tiawʔ³² to know
      • Malayic *tahu *tahuʔ

        • Iban tau able, can, should
        • Malay tahu to know
    • Philippine

      • Binukid tatau
    • Oceanic *taqu

      • Polynesian

        • Tongic

          • Tongan tau accustomed skill
        • Nuclear Polynesian

          • Samoic

            • Samoan tau a familiar or habitual action
          • Eastern Polynesian

            • Rapa Nui tau / tautau Beautiful, elegant, handsome, precious
            • Tahitic

              • Māori tau to be able, suitable
    • Malayo-Polynesian *ka-taqu ability, skill, knowledge

      • Philippine

        • Binukid ka-tatau ability, skill; wisdom, knowledge
      • Malayo-Polynesian *ka-taqu-an

        • Kawi 𑼒𑼡𑼁𑼮𑼁 katahwan skilled, used to, familiar with
        • Malayo-Sumbawan

          • Malayic

            • Malay pêngêtahuan knowledge, intelligence
  • Austronesian *ma-Caqu

    • Paiwan ma-tsaqu capable, skilled
    • Malayo-Polynesian

      • Oceanic *taqu-tasi sea-farer, expert sailor lit. "sea-able, sea-knowing"

        • Polynesian

          • Tongic

            • Tongan toutai fisherman irregular vowel
          • Nuclear Polynesian

            • Samoic

              • Samoan tautai master fisherman, captain
              • Tokelauan tautai master fisherman, captain, to steer, to direct
            • Eastern Polynesian

              • Tahitic

                • Tahitian tautai a fishing technique
          • Outlier Polynesian

            • Anuta tautai sea expert
            • Takuu tautai fishing leader, shark-fishing equipment
      • Philippine

        • Binukid ma-tatau clever, wise, skilled
      • Oceanic *maa-taqu

        • Fijian matasau / masau title of respect, master
        • Polynesian *maataqu *mataqu to know, to understand

          • Nuclear Polynesian

            • Samoic

              • Tokelauan mātau knowledge, understanding
            • Eastern Polynesian

              • Marquesic

                • Hawaiʻian mākaukau ready, able, competent, skilled
              • Tahitic

                • Tahitian
                • Māori mātau to know, to understand, knowledge
  • Austronesian *tsaqu-an

    • Paiwan tsaqu-an skill
    • Malayo-Polynesian *taqu-an

      • Malayo-Polynesian *ka-taqu-an

        • Kawi 𑼒𑼡𑼁𑼮𑼁 katahwan skilled, used to, familiar with
        • Malayo-Sumbawan

          • Malayic

            • Malay pêngêtahuan knowledge, intelligence
      • Malayo-Sumbawan

        • Bali tawang to see, to perceive, to know

Visual