seal the deal

To solidify, finalize, or decide upon an agreement or the terms thereof. I wasn't convinced at first, but it sealed the deal when he offered to include a 10-year warranty for free. We both benefit from this arrangement, so let's quit stalling and seal the deal!

Common Names:

Name	Pronounced	Usage
Luca (2)	LOO-tsah (Croatian)	Hungarian, Croatian
Emanuel	[i'mænjuəl]
Sunnifa	-	Medieval Scandinavian
Tanja	TAHN-yah (German, Finnish)	German, Finnish, Serbian, Croatian, Slovene, Macedonian, Danish, Swedish, Norwegian
Octave	-	French
Enoch	EE-nək (English)	Biblical, Biblical Latin, Biblical Greek