Strong's Definition
from 4422, cement (from its plastic smoothness)
KJV Usage: clay
STEPBible — Tyndale Abridged Hebrew Lexicon
מֶ֫לֶט (me.let) — mortar. mortar, cement, clay (flooring)
UBS Dictionary of Biblical Hebrew
noun m
Dust
mortar = stiff tenacious earth; ► material of which bricks, pottery, and even man himself is made
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
מֶ֫לֶט n.[m.] mortar, cement;—Je 43:9. ref