as·sist / əˈsist/ • v. [tr.] help (someone), typically by doing a share of the work: a senior academic would assist him in his work [intr.] their presence would assist in keeping the peace. ∎ help by providing money or information: they were assisting police with their inquiries | [intr.] funds to assist with capital investment. ∎ [intr.] be present as a helper or spectator: two midwives who assisted at a water birth. • n. an act of help, typically by providing money: the budget must have an assist from tax policies. ∎ (chiefly in ice hockey, basketball, or baseball) the act of touching the puck or ball in a play in which a teammate scores or an opposing batter is put out. ∎ [in comb.] a mechanical device that provides help: the implant is a ventricular-assist device. DERIVATIVES: as·sist·er n.
So assistance XIV. — F. — medL. assistentia. assistant XV. — F. — medL. assistēns, -ent-, prp. of assistere.