Law failure to do the required thing at the proper time (e.g., inexcusable delay in enforcing a claim)
Origin of lachesMiddle English lachesse from Old French laschesse from lasche, lax, negligent from Vulgar Latin an unverified form lascus, metathetic for Classical Latin laxus, lax
A legal doctrine that bars a claimant from receiving relief where the claimant's delay in pursuing the claim has operated to the prejudice of the opposing party.
Origin of lachesMiddle English slackness, negligence from Anglo-Norman lachesse, laches from Old French laschesse from lasche loose, remiss ; see lush 1.
OriginSee also: lâches
From French lâches (“remissness, slackness”).
laches - Legal Definition
Equitable doctrine that precludes or limits relief to one who delays in acting or bringing a claim.