BUTTONHOLED

Verb

buttonholed

simple past tense and past participle of buttonhole

Source: Wiktionary

BUTTONHOLE

But"ton*hole`, n.

Definition: The hole or loop in which a button is caught.

But"ton*hole`, v. t.

Definition: To hold at the button or buttonhole; to detain in conversation to weariness; to bore; as, he buttonholed me a quarter of an hour.

Source: Webster’s Unabridged Dictionary 1913 Edition