An Etymological Dictionary of Astronomy and Astrophysics

Physics: A vector quantity that specifies the change of position of a body or particle from the mean position or position of rest.
Geology: The offset of rocks caused by movement along a fault.

Etymology (EN): From displace, from → dis- + place + -ment.

Etymology (PE): Jâ bé jâyi, noun of jâ bé jâ literally “place to place,” from jâ “place,” from Mid.Pers. giyag “place,” O.Pers. ā-vahana- “place, village,” Av. vah- “to dwell, stay,” vanhaiti “he dwells, stays,” Skt. vásati “he dwells,” Gk. aesa (nukta) “to pass (the night),”
Ossetic wat “room; bed; place,” Tokharian B wäs- “to stay, wait;” PIE base ues- “to stay, live, spend the night.”