Strong's #3986: ma'en (pronounced maw-ane')
from 3985; unwilling:--refuse.
Brown-Driver-Briggs Hebrew Lexicon:
mâ'ên
1) refusing, unwilling to obey
Part of Speech: adjective verbal
Relation: from H3985
Usage:
This word is used 4 times:
Exodus 8:2: "And if thou refuse to let them go, behold, I will smite"
Exodus 9:2: "For if refuse to let them go, and wilt hold them still,"
Exodus 10:4: "Else, if refuse to let my people go, behold,"
Jeremiah 38:21: "But if thou refuse to go forth, this is the word that the LORD"