I. noun
( -s )
Etymology: Latin, interjection, from Greek iō
obsolete : a shout of joy or triumph
rocks, valleys, hills, with splitting ios ring — John Dryden & Nathaniel Lee
— often used interjectionally
II. ˈē(ˌ)ō noun
( -s )
Etymology: Hawaiian
: a large hawk ( Buteo solitarius ) that is the only indigenous raptorial bird of Hawaii