1540s, "conveniently," from handsome + -ly (2). Meaning "attractively" is from 1610s; "liberally, generously" from 1735.
the volume was handsomely bound
India has responded handsomely by providing 3,000 men
hand-rail
hands down
handshake
hands-off
handsome
handsomely
hands-on
hand-spike
handstand
handwork
handwriting