A name for Númenor after it was drowned beneath the sea (S/281). It is a compound of már “home” (often used of lands), nu “under” and the plural of falma “wave” (SA/bar, falas).
Quenya
Mar-nu-Falmar
home under waves
mar-nu-falmar
place name. Land under the Waves
Elements
Word Gloss már “home, dwelling, habitation, home, dwelling, habitation; [ᴹQ.] house; earth” nu “under, beneath” falma “(crested or foaming) wave, breaker, (crested or foaming) wave, breaker; [ᴱQ.] foam”
falma
(crested/foaming) wave
falma noun "(crested/foaming) wave" (PHAL/PHÁLAS), "a wave-crest, wave" (VT42:15), "foam wave" (PE17:127), "a breaker" (PE17:62), partitive pl. falmali "many waves" (PE17:73), allative falmalinnar "on the foaming waves" in Namárië(Nam, RGEO:67); the phrase an i falmalī _(PE17:74) seems to be a paraphrase of this with an independent preposition instead of the allative ending -nna (see an #1). Compounded in Falmari, a name of the Teleri, and Mar-nu-Falmar, "Home/Land under Waves", a name of Númenor after the Downfall. (SA:falas) Falmari "wave-folk", a name of the Teleri (PM:386). In earlier "Qenya", falma was glossed "foam" (LT1:253, cf. MC:213). Compare also the early "Qenya" words falmar "wave as it breaks" (LT1:253), pl. falmari "waves" (MC:216)_
már
home, house, dwelling
már (mar-) (2) noun "home, house, dwelling" (also "house" in the sense of family as in Mardil, q.v.). See mar above for references. In Mar-nu-Falmar, Mardil, and as final element in Eldamar, Fanyamar, Valimar, Vinyamar..
mélamar
home
mélamar noun "home", Exilic Quenya word of emotional sense: place of ones birth or the familiar places from which one has been separated (PE17:109). Mélamarimma noun "Our Home", an expression used by Exilic Noldor for Aman.
nu
under
nu prep. "under" _(LR:56, Markirya, Nam, RGEO:66, MC:214; the _Etymologies alone gives no [q.v.] instead). In Mar-nu-Falmar, nuhuinenna, q.v. Prefix nú- in nútil, q.v.
no
under
no prep. "under" (NŪ; all other sources give nu instead. In early "Qenya", no meant "upon"; MC:214)
Mar-nu-Falmar noun "Home under Waves", name of the sunken Númenor (Silm). See mar, már.