プログレッシブ和英中辞典(第4版)の解説
ゆえ【故】
❶〔理由〕a reason
彼は故なく家から追い出された
He was driven out of his home without cause [any reason].
彼は故あって叔父の養子になった
He was adopted by his uncle for 「a certain reason [some reason].(▼for a certain reasonは話し手に理由が分かっているとき,for some reasonは話し手に理由が分かっていないとき)
彼の沈黙は故なきことではない
There is some reason for his silence./He has remained silent, and with reason.
❷〔由緒〕
故ある人
a person of good background
故ある家
a family with a history
❸〔…のために〕
それゆえに
for that reason
悪天候ゆえに旅行は延期された
「Because of [On account of] the bad weather, the trip was postponed.
何ゆえにうそをついたのか
Why did you lie?