votarist

noun, plural vo·ta·ries. Also vo·ta·rist.

1. a person who is bound by solemn religious vows, as a monk or a nun.
2. an adherent of a religion or cult; a worshiper of a particular deity or sacred personage.
3. a person who is devoted or addicted to some subject or pursuit: a votary of jazz.
4. a devoted follower or admirer.

adjective

5. consecrated by a vow.
6. of or relating to a vow.

noun plural -ries also: votarist

1. RC Church Eastern Churches a person, such as a monk or nun, who has dedicated himself or herself to religion by taking vows
2. a devoted adherent of a religion, cause, leader, pursuit, etc

adjective

3. ardently devoted to the services or worship of God, a deity, or a saint

n.

1540s, “one consecrated by a vow,” from Latin votum (see vow). Originally “a monk or nun,” general sense of “ardent devotee of some aim or pursuit” is from 1591 (in Shakespeare, originally in reference to love).