second nature

A habit or mode of behavior so long practiced that it seems innate, as in Driving in heavy traffic is second nature to Chris. This expression is a shortened form of an ancient proverb, Custom (or usage) is a second nature, first recorded in 1390. It alludes to the fact that very frequently repeating something makes it seem completely natural or inborn.

Common Names:

Name	Pronounced	Usage
Amedea	-	Italian
Cobus	KO-bus	Dutch
Comgal	-	Irish
Hippolyta	-	Greek Mythology (Latinized)
Ennis	-	Irish
Merve	-	Turkish