Lutheran
1 of 2noun
Lu·ther·an ˈlü-th(ə-)rən 
: a member of a Lutheran church
Lutheran
2 of 2adjective
1
: of or relating to religious doctrines (such as justification by faith alone) developed by Martin Luther or his followers
2
: of or relating to the Protestant churches adhering to Lutheran doctrines, liturgy, and polity
Lutheranism
ˈlü-th(ə-)rə-ˌni-zəm
noun 
Word History
First Known Use
Noun
1521, in the meaning defined above
Adjective
1530, in the meaning defined at sense 1