Primitive elvish
nū/unu
root. down, under, go down, sink
unu
root. down, under, go down, sink
ndu
root. down, under, below, sink, descend, go down, *[ᴹ√] set (of Sun)
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!