zrowa` (Hebrew #2220)
and (feminine) zrowpah {zer-o-aw'}; or zrowah {zer-o-aw'}; from 2232; the arm (as stretched out), or (of animals) the foreleg; figuratively, force
KJV usage: arm, + help, mighty, power, shoulder, strength.
Pronounce: zer-o'-ah
Origin: or (shortened) zroao {zer-o'-ah}