Old English lufsum "worthy of love," from love (n.) + -some (1). Early 13c. as "lovely," 1720 as "amorous." An old word that yet might be useful in its original sense. Related: Lovesomely; lovesomeness.
lover-boy
loverly
love-scene
love-seat
lovesick
lovesome
love-song
lovestruck
love-tap
lovey
loving