Quenya 

ainas

hallow, a fane

ainas noun "a hallow, a fane", perhaps with stem ainass- (PE17:149). Compare yána #2.

ainas

noun. hallow, fane, hallow, fane, *shrine, holy place, sanctuary

aina-

to hallow, bless, treat as holy

aina- (1) vb. "to hallow, bless, treat as holy" (PE17:149)

yána

holy place, fane, sanctuary

yána (2) noun "holy place, fane, sanctuary" (YAN). Compare ainas in a post-LotR source.

airita-

hallow

#airita- vb. "hallow" (only pa.t. airitánë is attested) (VT32:7)