L fanum, sanctuary, temple < *fasnom < IE base *dhēs-: see fair2
fane in American English
(fein)
noun
1.
a temple
2. archaic
a church
Word origin
[1350–1400; ME ‹ L fānum temple, sanctuary]This word is first recorded in the period 1350–1400. Other words that entered Englishat around the same time include: fix, flash, range, screen, train