1) poison (of animals) 1a) poison of asps is under their lips, 1b) spoken of men given to reviling and calumniating and thereby injuring others 2) rust
ἰός
ios
ee-os'
Perhaps from εἶμι eimi (to go) or ἵημι hiēmi (to send); rust (as if emitted by metals); also venom (as emitted by serpents)