Blench (2017) finds widespread Austroasiatic roots for 'river, valley', 'boat', 'fish', 'catfish sp.', 'eel', 'prawn', 'shrimp' (Central Austroasiatic), 'crab', 'tortoise', 'turtle', 'otter', 'crocodile', 'heron, fishing bird', and 'fish trap'.
blˈɛntʃ tˈuː θˈaʊzənd sˈɛvəntˌiːn fˈaɪndz wˈaɪdspɹɛd ˌɔːstɹoʊsɪˈæɾɪk ɹˈuːts fɔːɹ ɹˈɪvɚ, vˈæli, bˈoʊt, fˈɪʃ, kˈætfɪʃ ˌɛspˈiː., ˈiːl, pɹˈɔːn, ʃɹˈɪmp sˈɛntɹəl ˌɔːstɹoʊsɪˈæɾɪk, kɹˈæb, tˈɔːɹɾəs, tˈɜːɾəl, ˈɑːɾɚ, kɹˈɑːkədˌaɪl, hˈɛɹən, fˈɪʃɪŋ bˈɜːd, ænd fˈɪʃ tɹˈæp.