Latin word amorem comes from Latin -or, Latin amare, and later Latin amor ((plural only) love affair. Beloved. Love. Sex.)
-or (Latin)
Used to form a third-declension masculine abstract noun from a verb root or conceived root form.
amare (Latin)
amor (Latin)
(plural only) love affair. Beloved. Love. Sex.
amor (Old French)
Love.
amur (Old French)
amore (Italian)
amour (French)
amour (Middle French)