Of uncertain derivation; a hole in the ground (dug for obtaining or holding water or other {purposes}) that {is} a cistern or well; figuratively an abyss (as a prison): - {well} pit.
From G5423; to be a mind {misleader} that {is} delude: - deceive.
Verse
Matrix
Luk 14:5And answered them, saying, Which of you shall have an ass or an ox fallen into a pitG5421, and will not straightway pull him out on the sabbath day?
Rev 9:2And he opened the bottomless pitG5421; and there arose a smoke out of the pitG5421, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pitG5421.