ᴱ√PUMU root. “*bubble”
A root in the Qenya Lexicon of the 1910s with variants ᴱ√PUMU and ᴱ√PUPU, apparently with meaning similar to ᴱ√PULU “swell”, having derivatives ᴱQ. pumpo “bubble; bladder; blister” and ᴱQ. pumpole “bubble” (QL/75). There are no signs of this root in Tolkien’s later writing, and for Neo-Eldarin I prefer to use ᴺ√WEL for “bubble” words.
References ✧ QL/75
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Derivatives