mid-14c., "something brought forward," from Old French motif "will, drive, motivation," noun use of adjective, literally "moving," from Medieval Latin motivus "moving, impelling," from Latin motus "a moving, motion," past participle of movere "to move" (see move (v.)). Meaning "that which inwardly moves a person to behave a certain way" is from early 15c.
motive (adj.)
late 14c., from Old French motif "moving" or directly from Medieval Latin motivus "moving, impelling," from past participle stem of movere "to move" (see move (v.)).
例文
1. Sheila had an ulterior motive for trying to help Stan.
ヒラはスタンを助けたいと思っているのは別の図だ。
2.The motive of the executions would be to instil fear.
死刑執行の動機は恐怖を植え付けることだ。
3.Police have ruled out robbery as a motive for the killing.