Ercambo("k") masc. name "one-hand Man" (VT47:7), the equivalent of Sindarin Erchamon, Erchamion as a title of Beren
ercassë("k") noun "holly" (ERÉK)
Ercoirënoun, alternative name of February (PM:135)
erdaadj. "solitary, deserted" (LT1:269)
erdë (1) noun "seed, germ" (ERÉD, VT45:12)
erdë (2) noun "singularity", the person as a whole (MR:216)
erdë (3) noun "repose" (marked by Tolkien with an "X", perhaps indicating that he considered dropping this form to eliminate homophones) (VT46:12). Compare sérë.
erë, erennoun "iron" or "steel"; Eremandu variant of Angamandu (Angband) (LT1:252; "iron" should be anga in LotR-style Quenya, but erë, eren may still be used for "steel". See also yaisa.)
erëaadj.? "one" or *"single", apparently an adjectival form (see er) (VT44:17)
Eremandu place-name "Hells of Iron", a name of Angband (LT1:249)
eressënoun "solitude" (ERE). In early "Qenya", eressë was an adjective or adverb: "singly, only, alone" (LT1:269).
eressëaadj. "lonely" (ERE, LT1:269), “solitary” (cf. Letters:386). Eressëa place-name "Lonely (One)", often used by itself for Tol Eressëa, the Lonely Isle (Silm) or Solitary Isle (Letters:386, footnote)
erinquaadj. "single, alone" (VT42:10)
Erintionnoun, second half of the month of avestalis (January) (LT1:252)
Eru divine name "the One" = God (VT43:32, VT44:16-17), "the One God" (Letters:387), a name reserved for the most solemn occasions (WJ:402). Often in the combination Eru Ilúvatar, "Eru Allfather" (cf. MR:112). Genitive Eruo(MR:329, VT43:28/32), dative Erun(VT44:32, 34). The adjectival form Eruva "divine" (Eruva lissëo "of divine grace", VT44:18) would be identical to the form appearing in the possessive case. Compound nouns: Eruhantalë "Thanksgiving to Eru", a Númenórean festival (UT:166, 436), Eruhin pl. Eruhíni "Children of Eru", Elves and Men (WJ:403; SA:híni, cf. Eruhîn in Letters:345), Eruion *"son of God" (or "God the Son"?) (VT44:16), Erukyermë "Prayer to Eru", a Númenórean festival (UT:166, 436), Erulaitalë "Praise of Eru", a Númenórean festival (UT:166, 436), Eruamillë "Mother of God" (in Tolkien's translation of the Hail Mary, VT43:32, see also VT44:7), Eruontari, Eruontarië other translations of "Mother (Begetter) of God" (VT44:7, 18), Erusén "the children of God" (RGEO:74; this is a strange form with no plural ending; contrast the synonym Eruhíni.) #Eruanna and #erulissë, various terms for "grace", literally "God-gift" and "God-sweetness", respectively (VT43:29; these words are attested in the genitive and instrumental case, respectively: Eruanno, erulissenen).
Erumanplace-name; this is a word to which various meanings are ascribed, but it always denotes some region. In the earliest phases of Tolkien's mythology, it was a region south of Taniquetil (LT1:91, 252-253). In the Etymologies, entry ERE, Eruman is a "desert north-east of Valinor". In the final version of the Quenya Lord's Prayer, where the locative form Erumandë appears, Tolkien appears to have moved Eruman out of this world entirely, making it the abode of God (Eru); Erumandë translates "in heaven".