Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
CONSTANT
As described in historical dictionaries
Patronymica Britannica (1860)
CONSTANT. 1. A contraction of Constantine. 2. An honourable appellation denoting the constancy of the bearer. 3. A sobriquet apjjlied to one vho M'as regular and pertinacious in some habit or custom. I knew a person whose real name was Hastings, who was better known among his neighbours as 'Old Constant,' from tlie regularity with which he appeared at a certain time in a certain place.
Surname type: Nickname
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English