supplantyoudaoicibaDictYouDict[supplant 词源字典]
supplant: [13] Supplant has no connection with things that grow, even though it may be related to English plant. Etymologically it means ‘trip up’. It comes via Old French supplanter from Latin supplantāre ‘trip up’, hence ‘overthrow’, a compound verb formed from the prefix sub- ‘up from under’ and planta ‘sole of the foot’ (possible ancestor of English plant).
[supplant etymology, supplant origin, 英语词源]
supplant (v.)youdaoicibaDictYouDict
early 14c., "to trip up, overthrow, defeat, dispossess," from Old French suplanter, sosplanter "to trip up, overthrow, drive out, usurp," or directly from Latin supplantare "trip up, overthrow," from sub "under" (see sub-) + planta "sole of the foot" (see plant (n.)). Meaning "replace one thing with another" first recorded 1670s. There is a sense evolution parallel in Hebrew akabh "he beguiled," from akebh "heel."