late 14c., "learned, instructed thoroughly in the basics;" 1540s as "firmly fixed or established," past participle adjective from ground (v.). Electrical sense is from 1889. Meaning "having been denied privileges" is from 1940s. Dickens had room-ridden "confined to one's room."
例文
1. Thompson grounded him for a month,and banned television.
トンプソンは、1ヶ月間外出できないように罰し、テレビを見ることを禁止した。
2.The civil aviation minister ordered all the planes to be grounded .
民間航空部長はすべての航空機に離陸禁止を命じた。/
3.The boat finally grounded on a soft,underwater bank.
その船は最終的に柔らかい水中の浅瀬で座礁した。
4.The car took a lurch forward but grounded in a deep rut.