(pl. lynt, coll. pl. lunnath)
Sindarin
lunt
noun. boat
lunt
boat
lunt
noun. boat
lunt
boat
cair
noun. ship
cair
noun. ship
The Sindarin word for “ship”, most notably appearing as an element in the name Cair Andros “Ship of Long Foam” (LotR/812; PM/371). It is derived from primitive ✶kiryā, with the ancient i becoming e via a-affection [kery(a)], then the y intruding into the main syllable to form the diphthong ei [keir], and ultimately ei becoming ai as usual in final syllables in Sindarin of the 1950s and 60s [kair]. This word has a somewhat unusual plural, since ī replaced final ā in its ancient plural [kiryā-ī > kirī], so that a-affection did not occur resulting in a modern plural form cîr “ships” (PE17/147). Its class plural is likewise the somewhat unusual ciriath “[all the] ships” for similar reasons.
Conceptual Development: The Etymologies from around 1937 had N. ceir “ship” under the root ᴹ√KIR “cleave” (Ety/KIR), since in Noldorin of the 1930s ei did not (usually) become ai in final syllables. In Primitive Quendian Structure: Final Consonants from 1936, Tolkien gave cīr “ship”, first marked “N.”, then “Ilk.”, then “N. & Ilk.” (PE21/57 and note #28). It had the class plurals círiath or ciriath but it is not clear which of these was the intended final form (PE21/57 note #28). I think ciriath is more phonologically plausible; compare class plural S. Firiath “Mortals” vs. ordinary plural Fîr (WJ/387).
Early Noldorin Word-lists of the 1920s had the word ᴱN. cair followed by ᴱN. braithgair, but neither word was translated (PE13/139-140).
cair
ship
cair (in compounds cír-) (i gair, o chair), pl. cîr, i chîr; coll. pl. ciriath.
cair
ship
(in compounds cír-) (i gair, o chair), pl. cîr, i chîr; coll. pl. ciriath.
cirion
shipman
(i girion) (sailor), pl. ciryn (i chiryn), coll. pl. cirionnath.
círdan
shipbuilder, shipwright
(i gírdan, o chírdan) (shipwright), pl. círdain (i chírdain).
lunt (pl. lynt, coll. pl. lunnath)