what   
ahoana
how? What? Used in answering a call. Why? What is the cause of it? It is also an exclamation, as ahoana ary! Well then! It admits of the suffix pronouns and tenses: ny faty aza ahoako: I care not for, or I trouble not myself about death; death has no fear for me! ~ ahoanao izany?: what is that to you? [Richardson 1885]
aiza no
by what means? [Richardson 1885]
inona
what? [Hallanger 1973]
maninona
what of it ? what happened ? what's the matter? [Hallanger 1973]
ndry
showing surprise or pain; what ? oh ! [Hallanger 1973]

what   
ino