Sindarin 


place name. properly 'the Vale or lands about the River Síre' or 'the Great Stream'

_ topon. _properly 'the Vale or lands about the River Síre' or 'the Great Stream'. >> -ion

Sindarin [(PE17 Sindarin Corpus) PE17:42-3] < *_siriānā_. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by


noun. the great river

sîr (“river”) + on (augmentative suffix) #Another possible interpretation: “the land of the waters” where ion is archaic pl. genitive suffix.

Sindarin [Tolkiendil] Group: Tolkiendil Compound Sindarin Names. Published by


place name. Great River

The Great River of Beleriand (S/120), a combination of sîr “river” and the adjective iaun “wide”, reduced to its suffixal form -ion also seen in the names of lands (PE17/42).

Conceptual Development: This river was named G. Sirion in the earliest Lost Tales (LT1/238) and was explained as an archaic word for “river” in the Gnomish Lexicon (GL/67). The name N. Sirion appeared in The Etymologies from the 1930s as an elaboration of N. sîr (Ety/SIR). The derivation given above appeared in Tolkien’s Words, Phrases and Passages from The Lord of the Rings from the late 1950s or early 1960s (PE17/42). In an early name list its Qenya equivalent was given as ᴱQ. Sirion as well (PE13/102).


Element in


sîr“river, stream”
iaun“wide, extensive, large, roomy, vast, huge”

Phonetic Developments

siriānā > Sirion[siriānā] > [siriāna] > [siriǭna] > [siriauna] > [siriaun] > [sirion]✧ PE17/042
Sindarin [MRI/Sirion; PE17/042; PMI/Sirion; SA/sîr; SI/Sirion; UTI/Sirion; WJI/Sirion] Group: Eldamo. Published by


noun. river

Sindarin [Ety/385, S/437, RC/384] Group: SINDICT. Published by


noun. (long and large) river (having strong current)

Sindarin [S/430, LotR/F, TC/179, VT/48:24] Group: SINDICT. Published by



Sirion is a Sindarin/Noldorin name which contains the element sîr. Depending on the meaning of the second element, the name could either mean "great river" or "land of waters" (-ion as augmentative suffix or archaic plural genitive suffix). Its name in Khuzdul was Gabilān, with the element Gabil - "Great".

Sindarin [Tolkien Gateway] Published by


great river

sirion (i hirion, o sirion), pl. siryn (i siryn).



1) (also = rill) sîr (i hîr, o sîr), in compounds sir- or -hir or -hír; no distinct pl. form except with article (i sîr), coll. pl. siriath. Note: sîr is also the adverb ”today”. 2) celon (i gelon, o chelon), pl. celyn (pl. i chelyn), 3) The word lind ”singer” may also be used of rivers (see . (WJ.309).



(long, large river with strong current) duin (i dhuin), no distinct pl. form except with article (i nuin) (VT48:24)