Costantin is not a popular first name. It is more often used as a boy (male) name.
First names and their meaning - Page 8004
Course
Course is not a popular first name.
Covi
Covi is not a popular first name.
Cozza
Cozza is not a popular first name.
Crabtree
Crabtree is not a popular first name.
Crofton
Crofton is not a popular first name. It is more often used as a boy (male) name.
Cyran
Cyran is not a popular first name.
Dacre
Dacre is not a popular first name.
Dahyun
Dahyun is not a popular first name. It is more often used as a girl (female) name.
Danker
Danker is not a popular first name.