然しかるが故ゆえに

conjunction

as such; therefore; for that reason

Formal, literary conjunction used to introduce a logical consequence. Equivalent to modern したがって or それゆえに, but with a classical, written-register feel. Rare in everyday speech.

• 彼かれは証しょう拠こをすべて隠いん滅めつした。然しかるが故ゆえに、有ゆう罪ざいは免まぬがれない。

  He destroyed all the evidence. As such, he cannot escape conviction.

• この書しょは古こ来らいより聖せい典てんとされてきた。しかるが故ゆえに、その解かい釈しゃくには細さい心しんの注ちゅう意いを要ようする。

  This book has been regarded as sacred since ancient times. For that reason, its interpretation requires the utmost care.