I. ˌlō-ər-ˈkās adjective
Etymology: from the compositor's practice of keeping such types in the lower of a pair of type cases
Date: 1683
of a letter : having as its typical form a f g or b n i rather than A F G or B N I
• lowercase noun
II. transitive verb
( -cased ; -cas·ing )
Date: 1908
: to print or set in lowercase letters