Early Noldorin
eithla-
verb. to spring, well forth
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!
eithla-
verb. to spring, well forth
A word in the Early Noldorin Dictionary of the 1920s given as an infinitive (and noun) eithlod “springing, welling forth”, simply a verb form of ᴱN. aithl “spring” (PE13/158). There was a similar verb G. aithla- “to spring from, bubble up, etc.” in the Gnomish Lexicon of the 1910s (GL/18), altered to aithlo- or aithl- in the Gnomish Lexicon Slips revising that document (PE13/108).
Neo-Sindarin: I think this early verb may be salvaged as ᴺS. eithela-, a verb form of S. eithel “source, spring”.