Strong's G3561 — νουμηνία (noun)
noumenia (nou-may-nee'-ah) n.
1. the festival of new moon
[feminine of a compound of G3501 and G3376 (as noun by implication, of G2250)]
KJV: new moon 
Root(s): G3501, G3376 
See also: G2250 
Hebrew root: μήν
Occurrences: 1