Quenya 

nantul-

verb. to return, *come back

A verb for “return” [= “come back”] in the final version of the Löa Yucainen poem in the phrase i aluvar koivienyo eärello nantule “that never in my life will return from the Sea” (CPT/1298). It is a combination of nan- “back” and tul- “come”, so more literally “to come back”. I think this verb can coexist with entul- “return = come again”; see that entry for discussion.