Wes. nil n. “moon”
A word listed as a later form of Ad. nîlu “moon” (SD/306) and therefore perhaps a Westron word, as suggested by Andreas Moehn (EotAL/NUL). The other “later form” Njūl is unlikely to be Westron, since there Westron seems not have palatalized consonants.
Reference ✧ SD/306 ✧ Nil “Moon”