or (in the plural) עָר; or עָיַר; (Judges 10:4), from עוּר; a city (a place guarded by waking or a watch) in the widest sense (even of a mere encampment or post); Ai (from margin), city, court (from margin), town.
a primitive word; father, in a literal and immediate, or figurative and remote application; chief, (fore-) father(-less), [idiom] patrimony, principal. Compare names in 'Abi-'.