The definition of lame is being physically disabled causing a limp or something that is weak and unsatisfactory.(adjective)
See lame in Webster's New World College Dictionary
Origin: ME < OE lama, akin to Ger lahm, ON lami < IE base *lem-, to break > Russ lomat', to break
Origin: Fr < L lamina: see lamina
See lame in American Heritage Dictionary 4
adjective lam·er, lam·est
Origin: Middle English
Origin: , from Old English lama.
Origin: , from Old French
Origin: , from Latin lāmina, thin plate.
Origin: French, spangled, laminated, lamé
Origin: , from Old French lame, thin metal plate; see lame2.
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