Dominic is a name common among Roman Catholics and other Latin-Romans as a boys name. Originally from the late Roman-Italic name "Dominicus" its translation means, "Lordly", "Belonging to God" or "of the Master".
A nickname is a substitute for the proper name of a familiar person, place, or thing - commonly used for affection. The term hypocoristic is used to refer to a nickname of affection between those in love or with a close emotional bond, compared with a term of endearment.