fortnight

• 二週間

古英語のfourteniht（十四夜）を略したもの。 古ゲルマン語の夜で時間を数える習慣から。

fortnight

fortnight: [13] The ancient Germanic peoples recorded the passing of time in units of ‘nights’ rather than, as we do, in units of ‘days’: hence a period of two weeks was in Old English fēowertīene niht, or ‘fourteen nights’. By early Middle English times this was starting to be contracted to the single word fortnight. (The parallel sennight ‘week’ [15] – literally ‘seven nights’ – survived dialectally into the 20th century.)
=> fourteen

fortnight (n.)

"period of two weeks," 17c. contraction of Middle English fourteniht, from Old English feowertyne niht, literally "fourteen nights," preserving the ancient Germanic custom of reckoning by nights (mentioned by Tacitus in "Germania" xi). Related: Fortnightly.

1. in a fortnight 's time

は2週間以内に

2.You need a break.Why not take a fortnight off from work？

あなたは休む必要がありますが、なぜ2週間休みを取らないのですか。

3.I really feel in the pink after a fortnight 's holiday.

2週間の休暇を過ごした後、私は確かに体がとても快適だと感じました。dd>

4.This work will tie me up for fortnight .

この仕事は私を2週間忙しくさせます。

5.A fortnight passed in a flash.

あっという間に半月が過ぎた。