Strong's Definition
a primitive root; to muddle, i.e. (figuratively and intransitive) to turn (morally) corrupt
KJV Usage: become filthy
STEPBible — Tyndale Abridged Hebrew Lexicon
אָלַח (a.lach) — to corrupt. (Niphal) to be corrupt morally, tainted
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[אָלַח] vb. only Niph. be corrupt morally; tainted base