A word for “ocean” (PE17/27), “great sea” (PM/363) or “great ocean” (RGEO/64) variously attested as gae(a)ron (PE17/027; PE17/149; PM/363) or aearon (RGEO/65), and a combination of gaear or aear “sea” with the augmentative suffix -on (PE17/27, RGEO/65). Since I prefer gaear for sea; I also prefer gaearon or gaeron for “ocean”. Of these, I think gaeron is the ordinary form, and gaearon is more archaic or poetic.
Sindarin
gaer
ocean
gaearon
noun. ocean, (lit.) great sea
gaearon
ocean
_n. _ocean. Augmentative form of _gaear _Sea. Q. earon, airon. >> gaear
gaear
ocean
gaear (i **aear) (sea), pl. gaeair (i ngaeair** = i ñaeair).
gaear
ocean
(i ’aear) (sea), pl. gaeair (i ngaeair = i ñaeair).
aear
ocean
aear (sea), pl. aeair.
aear
ocean
(sea), pl. aeair.
gaearon
great ocean
(i ‘Aearon), pl. Gaearyn (i Ngaearyn = i Ñaearyn) if there is a pl.
aearon
ocean
_n. _ocean. Augmentative form of _aear _Sea. Q. earon, airon. nef aear, sí nef aearon lit. 'beyond the Sea, here beyond the Great Sea'. >> aear
belegaer
noun. ocean
_ n. _ocean.
gaeron
noun. ocean
_ n. _ocean.
_ n. _ocean.