hiawai - thirsty
Hiawai, n. Thirst. Ka mate te tangata ra, i te hiawai (P. 97). ‖ hia (ii).
Williams Dictionary
Kei te hiawai koe.You are thirsty.
Kei te hiawai koutou.You (all) are thirsty.
Kei te hiawai ahau.I'm thirsty.