be useful
Definition:
to be of use or service or profit or benefit 1a) (Qal) 1a1) to be of use or service 1a2) servitor, steward (participle) 1a3) to benefit, profit 1b) (Hiphil) to be used, be wont, exhibit use or habit, show harmony with, be familiar with, know intimately
Definition:
to be familiar with; by implication, to minister to, be serviceable to, be customary; acquaint (self), be advantage, [idiom] ever, (be, (un-)) profit(-able), treasurer, be wont.; a primitive root