(1):
(v. t.) To render human or humane; to soften; to make gentle by overcoming cruel dispositions and rude habits; to refine or civilize.
(2):
(v. t.) To convert into something human or belonging to man; as, to humanize vaccine lymph.
(3):
(v. i.) To become or be made more humane; to become civilized; to be ameliorated.
(4):
(v. t.) To give a human character or expression to.