それかあらぬか

expression

I don't know for certain, but ...; I don't know if that's the reason, but ...

Used to introduce a statement while expressing uncertainty about its truth or cause. Often followed by a tentative explanation or guess.

• それかあらぬか、彼かれは今日きょうも遅ち刻こくした。

  I don't know if that's the reason, but he was late again today.

• それかあらぬか、急きゅうに雨あめが降ふり出だ