vow 5087 ## nadar {naw-dar'}; a primitive root; to promise (pos.,
 to do or give something to God): -- (make a) {vow}.[ql

vow 5088 ## neder {neh'-der}; or neder {nay'-der}; from 5087; a 
promise (to God); also (concretely) a thing promised: -- {vow}([-
ed]).[ql

vow 2171 # euche {yoo-khay'}; from 2172; properly, a wish, 
expressed as a petition to God, or in votive obligation: -- 
prayer, {vow}.[ql

vowel 0001 # a {al'-fah}; of Hebrew origin; the first letter of 
the alphabet; figuratively, only (from its use as a numeral) the 
first: -- Alpha. Often used (usually an, before a {vowel}) also 
in composition (as a contraction from 427) in the sense of 
privation; so, in many words, beginning with this letter; 
occasionally in the sense of union (as a contraction of 260).[ql