開かい披ひ

noun, noun or participle which takes 'suru', transitive verb

opening a letter; unsealing

Formal or literary term for opening a sealed letter or document. Rare in everyday speech; 開封 (かいふう) is the usual modern word.

• 古ふるい手て紙がみを開かい披ひすると、中なかから写しゃ真しんが出でてきた。

  When I opened the old letter, a photograph fell out.