万ばん謝しゃ

noun, noun or participle which takes 'suru'

many thanks; sincere apologies

A formal, somewhat literary expression used to convey deep gratitude or profound apology. The intended meaning depends heavily on context. Often used in written correspondence or formal speeches.

• ご支し援えんに万ばん謝しゃ申もうし上あげます。

  I express my deepest gratitude for your support.

• ご迷めい惑わくをおかけし、万ばん謝しゃの言こと葉ばもございません。

  I have caused you trouble, and I have no words to fully apologize.