Available Definitions:
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 give a human character or expression to.
3) v. t. - To convert into something human or belonging to man; as, to humanize vaccine lymph.
4) v. i. - To become or be made more humane; to become civilized; to be ameliorated.