Displacement
来自Big Physics
mid 16th century: from Old French desplacer .
wiktionary
From French déplacement. Morphologically displace + -ment.
etymonline
displacement (n.)
1610s, "removal from office;" see displace + -ment. As "quantity of a liquid displaced by a solid body put into it," 1809. Physics sense "amount by which anything is displaced" is from 1837.
