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!

Qenya 

ef-

verb. to emerge (especially from water)

A verb appearing in its present tense form épha in a rejected page of verbal roots from the Quenya Verbal System (QVS) written in 1948 (PE22/127). It was based on the root ᴹ√EPH “emerge (especially from water, opp[osite] of dive)”, so presumably had the same meaning. It had past forms empe, emphe based on nasal-infixion.

Conceptual Development: Immediately above this entry, Tolkien had a past form kusse {“emerge” >>} “came up, emerged” based on a root {ᴹ√KUSU >>} ᴹ√KHUSU “up from below ground, to ground level; come up, emerge”, but this root and its derivatives were deleted (PE22/127).

Neo-Quenya: As we have no better alternatives, I would retain ᴺQ. ef- “to emerge (especially from water)” for purposes of Neo-Quenya, but I would give it the past form ✱eppe in keeping with the discussion of the past forms of basis verbs from elsewhere in QVS (PE22/102); compare rappe past tense of raf-.