A variation of 'ayil; strength -- strength.
see HEBREW 'ayil
H353. eyal
אֱיָל noun masculine help (loan-word from Aramaic help, so LagOr ii. 7, BN 175, NöZMG 1883, 528) only in simile א אֵין ׳כְּגֶבֶר Psalm 88:5.