
1) Celtic boy name 2) Gaulish god 3) Tutelary deity
Found on
https://www.crosswordclues.com/clue/nemausus

Deus Nemausus is often said to have been the Celtic patron god of Nemausus (Nîmes). The god does not seem to have been worshipped outside of this locality. The city certainly derives its name from Nemausus, which was perhaps the sacred wood in which the Celtic tribe of the Volcae Arecomici (who of their own accord surrendered to the Romans in 121...
Found on
http://en.wikipedia.org/wiki/Nemausus
No exact match found.