The Austronesian Comparative Dictionary

*heqe yes; expression of agreement

PMP heqe yes; expression of agreement

WMP
Bontok ʔə́ʔə yes; an expression of agreement
Aklanon húʔo yes. Used quite differently than the English equivalent -- the "yes" can mean "the former" or "yes, your statement (in the negative) is true"
Hiligaynon húʔu yes, affirmative particle
Palawan Batak ʔeʔe yes
Mongondow oʔo expression of agreement; yes, good, it is good
Gorontalo oːo yes, true
Bare'e oʔo sound that one makes to apologize or to show agreement
Uma oo interjection
Sundanese hɨɨh yes, right, correct
CMP
Rembong e sound indicating agreement
Manggarai eʔe yes, good, agreed!

POC oqo yes

OC
Gitua oo yo! (reply)
Mono-Alu o yes