Laches /(lăsh"ĕz)/
Lach·es
Laches
n.
-
Neglect; negligence; remissness; neglect to do a thing at the proper time; especially, a delay in asserting a claim, sufficient to cause a person to lose the right to adjuducation of the claim by a court. (Law)
It ill became him to take advantage of such a laches with the eagerness of a shrewd attorney.