1590s, "cheating;" present-participle adjective from amuse (v.). Sense of "interesting" is from 1712; that of "pleasantly entertaining, tickling to the fancy" is by 1826. Noted late 1920s as a vogue word. Amusive has been tried in all senses since 18c. and might be useful, but it never caught on. Related: Amusingly; amusingness.
an amusing speaker
an amusing fellow
an amusing film with a steady stream of pranks and pratfalls
amulet
amusable
amuse
amused
amusement
amusing
Amy
amygdala
amyl
amylase
amylo-