word-forming element meaning "a doer, one who or that which does," from Latin -facientem (nominative -faciens), combining form of present participle of facere "to make" (from PIE root *dhe- "to set, put").
facet
facetious
face-value
facia
facial
-facient
facile
facile princeps
facilis descensus Averni
facilitate
facilitation