theologian

noun

1. a person versed in theology, especially Christian theology; divine.

noun

1. a person versed in or engaged in the study of theology, esp Christian theology

n.late 15c., from Old French theologien (14c.); see theology. A petty or paltry theologist is a theologaster (1620s), coined in Medieval Latin by Martin Luther (1518). A person who engages in theology. Some notable theologians are Thomas Aquinas, Augustine, John Calvin, and Martin Luther.