Definition of Protestancy in US English:

Protestancy

noun

  • Protestantism; specifically (in the 17th cent.) the system of the reformed Church of England, as distinguished from Catholicism, Presbyterianism, and Puritanism. Now rare.

Origin

Mid 16th century. From Protestant + -cy; compare -ancy.

Pronunciation

Protestancy

/ˈprɒtɪst(ə)nsi/