Thomas Davidson,
Chambers's Twentieth Century Dictionary 1908…
(1908)
“ A different Latin suffix -culum, forming substantives from verbs, is represented in the form -cle in several words adopted through French, as miracle, oracle, spectacle.-um, neuter term., as medium. [L. -um, Gr. -on.] -uncle, little, dim., as peduncle. [L. -un-cu-lus, A.S. -incle; conn. with -en and -cule, diminutives.] -ure, noun suffix, denoting act of, as capture; state of being, as verdure.—In leisure and pleasure, -ir has been replaced by -ure, O. Fr. leisir, plaisir. [L. -ura; Fr. -ure.] ”
