give (someone) (one's) word

To make a serious promise, assurance, or vow (to someone). I give you my word that I will do everything in my power to have this matter resolved by next week. You gave your word that you'd be there, so don't even think about backing out now.

Common Names:

Name	Pronounced	Usage
GÜNther	GUYN-ter	German, Germanic Mythology
Applegarth	['æplgæθ]
Micha	-	Biblical Latin, Biblical Greek
Yura	-	Russian, Ukrainian
Onesimus	o-NES-i-məs (English)	Biblical, Biblical Latin
Miles	MIELZ, MIE-əlz	English