tólë noun "centre" (LT1:269; the word endë is to be preferred in Tolkien's later Quenya)
Quenya
tó
wool
tólë
centre
tamma
tool
tamma noun "tool" (PE17:108)
tamma
noun. tool
A word for “tool”, an instrumental form of the root √TAM “construct” in notes from the late 1960s (PE17/107).
carma
noun. tool, implement, means, weapon
A noun meaning either a “tool, weapon” or “tool, implement, means”, an instrumental formation of car- “doing”, hence originally simply a “✱thing for doing/making” (PE17/114; PE22/152).
Neo-Quenya: This word is similar in meaning to tamma “tool” based on √TAM “construct”, but for purposes of Neo-Quenya I would assume carma is a more general term for a mechanism to get something done, so including non-physical things like “means”, as opposed to tamma “tool” which is more specifically a (physical) instrument for constructing something.
carma
tool, weapon
carma (1) noun "tool, weapon" (PE17:114)
carma
noun. tool, implement, means
oa
wool
oa (2) noun "wool" (LT1:249; evidently replaced by tó in Tolkien's later Quenya)
carmatan
noun. toolsmith
carma
helm
carma (2) noun "helm" (helmet) in Carma-cundo ("k") "Helm-guardian" (PM:260). Notice that in PE17:114, Tolkien indicated that he rather wanted carma to mean "tool" or "weapon", leaving the status of carma "helmet" uncertain. Possibly shortened to -car in the names Eldacar (Elfhelm?), Hallacar (Tall-helm?) Cf. also cassa in Etym.
entya
adjective. central, middle
carma
noun. helm
entya
central, middle
entya, enetya adj. "central, middle" (VT41:16; these forms, as well as the noun entë "centre", come from a late, somewhat confused source; the adjective #endëa and the noun endë from earlier material may fit the general system better, and #endëa is even found in the LotR itself as part of the word atendëa, q.v.)
entë
noun. centre
tó 1) noun "wool" (TOW)