FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

'acar aw-sar' — a primitive root; to yoke or hitch; by analogy, to fasten in any sense, to join battle:--bind, fast, gird, harness, hold, keep, make ready, order, prepare, prison(-er), put in bonds, set in array, tie.