affability (n.)

of persons, "open to conversation or approach," late 15c., from Old French affable "benign, approachable" (14c.), from Latin affabilis "approachable, courteous, kind, friendly," literally "who can be (easily) spoken to," from affari "to speak to," from ad "to" (see ad-) + fari "to speak" (from PIE root *bha- (2) "to speak, tell, say"). Related: Affably. Glossed in Old English as wordwynsum.