[polë (stem poli-) noun "meal, grist" (PE17:115, 181), a word Tolkien decided to replace by mulë; perhaps polë was a variant of porë.]
Quenya
polë
noun. meal, grist, meal, grist, [ᴹQ.] flour, [ᴱQ.] oats, grain (unground kernels of oats, wheat, etc.)
polë
meal, grist
pol-
verb. can, to be (physically) able to
A verb in notes associated with the 1959-60 essay Ósanwe-kenta meaning “can, have physical power and ability” (VT41/6). The example Tolkien gave was polin quetë “I can speak (because mouth and tongue are free)”, as opposed to istan quetë “I can speak (because I have learned a language)” [= “I know (how) to speak”] and lertan quetë “I can speak (because I am free to do so there being no obstacle of promise, secrecy, duty)”. Another later expression for “can” was the verb ec- “may, can, have chance, opportunity or permission”, which was used impersonally: ecë nin care sa “I can do that, (lit.) there is a chance for me to do that” (VT49/20).
Conceptual Development: The English-Qenya Dictionary of the 1920s had the verb ᴱQ. mala- “am able to (used of capacity, ability)” (PE15/67). The first version of Quenya Personal Pronouns (QPP1) from the late 1940s had ᴹQ. valya “can” (PE23/74), probably related to the root ᴹ√BAL having to do with power (Ety/BAL). Quendian & Common Eldarin Verbal Structure (EVS1) and Quenya Verbal System (QVS) from this same period had ᴹQ. kav- “can”, with past tense kambe “could” (PE22/92, 102), derived from the root ᴹ√KAB “be able, capable” (PE22/105, 127).
Neo-Quenya: For purposes of Neo-Quenya, I think it is possible all of the 1950s and 60s words for “can” co-exist with slightly different meaning: pol- referring to physical ability, ista- to mental ability, lerta- to lack of social limits, and ec- to chance and opportunity. I wouldn’t use any of the words from the 1940s or earlier, though.
tulwë
pillar, standard, pole
tulwë noun "pillar, standard, pole" (LT1:270)
mulë
noun. meal, meal, *grist, ground grains
mulë
meal, grist
mulë noun "meal, grist" (PE17:115, 181), replacing polë, q.v.
istan quetë
I can speak, I know how to speak
lepetta
noun. Gondorian hardwood
mat
meal, meal time
mat (matt-) noun "meal, meal time" (QL:59)
mortavar
noun. ebony, ivory
tamuril
noun. yew
This word was used for “flour” related words for much of Tolkien’s life. It first appeared as ᴱQ. pole (poli-) “oats” in both the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s, derived from the early root ᴱ√POL-I which was, in that document, distinct from ᴱ√POLO “have strength” (QL/75, PME/75). The word reappeared with various glosses in documents from the 1920s: “grain; unground kernels of oats, wheat, etc.” (PE15/73), “grain” (PE14/75), “flour” (PE16/141).
In the Declension of Nouns from the early 1930s it was ᴹQ. pole “flour, meal” (PE21/12), but in The Etymologies of the 1930s it became ᴹQ. pore (pori-) “flour, meal” derived from primitive ᴹ✶pori under the root ᴹ√POR (Ety/POR). Tolkien may have changed l to r to better distinguish it from the root ᴹ√POL(OD) “physically strong” (Ety/POL). In notes from around 1967, however, Tolkien became dissatisfied with the meaning of the root √POL, saying:
> POL. This cannot refer to strength. (Too obvious a reminiscence of [Latin] pollens); also it does not account for poli- “meal, grist”. POL- should have senses “pound up”, break up small, reduced to powder etc. (PE17/181).
Thus it seems he restored pole (poli-). However, in notes from 1968 he reversed himself, saying:
> Q. pol, large, big (strong). polda big. DELETE pole “meal”! Make it mule (PE17/115).
Neo-Quenya: Given the widespread use of √POL in words having to do with physical ability, I agree with Tolkien’s 1968 note that poli- is not viable for “flour” words. I recommend Q. mulë for “meal” = any ground grains in general, but I think it is worth retaining 1930s ᴹQ. pore specifically for “flour”.