lamba (1) noun "tongue" (physical tongue, while lambë = "language") (WJ:394, LAB; according to VT45:25, Tolkien first wrote lambe, but as noted, this alternative form is rather used for "tongue" in the sense of "language")
Quenya
lambë
tongue, language
lambe
noun. tongue
lamba
tongue
lambelë
language
lambelë noun "Language" (especially with reference to phonology), *"phonetics" (VT39:15)
lambë valarinwa
Language of the Valar
lambe eldaiva
the language of the Eldar
lambe eldaron
the language of the Eldar
elda-lambë
proper name. Language of the Eldar
Elda-lambë
the language of the eldar
Elda-lambë noun "the language of the Eldar" (WJ:368)
manen lambë quendion ahyanë
How did the language of the Elves change?
Valarin
valian
Valarin adj. "Valian", of or relating to the Valar, as noun = Lambë Valarinwa "Valarin tongue" (WJ:397). It may be that Valarinwa is the normal form of the adjective "Valian" in Quenya.
lambina
of tongue, spoken with tongue
lambina adj. "of tongue, spoken with tongue" (PE17:46). Cf. lambë.
lamma-
verb. ?to echo
lav-
verb. to lick
A verb for “to lick” based on the root √LAB of similar meaning (PE17/72; PE22/151-152; RGEO/59).
Conceptual Development: This verb dates all the way back to ᴱQ. lava- “lick” from the Qenya Lexicon of the 1910s where it was derived from the early root ᴱ√LAVA (QL/52). It retained this form in Early Qenya Word-lists of the 1920s (PE16/134), and in The Etymologies of the 1930s it appeared as ᴹQ. lavin “I lick” under the root ᴹ√LAB “lick” (Ety/LAB). The verb and root continued to appear regularly in Tolkien’s later writings.
quetil
tongue, language
quetil ("q")noun "tongue, language" (KWET)
tengwelë
language
tengwelë noun "Language" (in all its aspects), a general word for the grouping and composing of tengwi (linguistic "signs", phonemes) into a linguistic system (VT39:16)
tengwestië
language
tengwestië noun "Language" as abstract or phenomenon (WJ:394)
tengwië
language
#tengwië noun "language" in the compound mátengwië "language of the hands" (VT47:9). Compare tengwë, tengwesta.
lambë noun "tongue, language" (the usual word for 'language' in non-technical use) (WJ:368, 394, ÑGAL/ÑGALAM), "the language or dialect of a particular country or people...never used for 'language' in general, but only for particular forms of speech" (VT39:15); also name of tengwa #27 (Appendix E). (In early "Qenya", lambë was defined as "tongue" of body, but also of land, or even = "speech" [LT2:339]. In LotR-style Quenya lambë only means "tongue = speech", whereas the word for a physical tongue is lamba.) Lambë Valarinwa "Valarin tongue" (WJ:397), lambë Quendion "the language of the Elves" (PM:395), Lambengolmor pl. noun "Loremasters of Tongues", a school founded by Fëanor (WJ:396); sg. #Lambengolmo. Spelt Lambeñgolmor in VT48:6.