early 14c., "customary, regular;" mid-14c., "owing, payable," from Old French deu, past participle of devoir "to owe," from Latin debere "to owe" (see debt).
In reference to points of the compass (as in due east) it is attested from c. 1600, originally nautical, from notion of "fitting, rightful." As an adverb from 1590s; as a noun from early 15c. Prepositional phrase due to (much maligned by grammarians) is from 1897.
例文
1. Council members are due to have informal discusions later on today.
委員会のメンバーは、今日の夕方に非公式の議論を行う予定です。
2.He is due to face a court-martial on drugs charges.
麻薬取引の容疑で軍法裁判を受ける。
3.The Channel tunnel was due to open towards the end of 1993.
海峡トンネルは1993年末までに開通する予定です。/
4.The factory was due to shut for the festive period.
祝日の間、工場は閉鎖されます。
5.It was a real prize due to its rarity and good condition.