[1855–60; ‹ L glabrēscent- (s. of glabrēscēns, prp. of glabrēscere to become smooth), equiv. to glabr-, s. of glaber smooth + -ēscent--escent]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: barrage, keyword, output, specialist, superheat