gaearon

noun. ocean, (lit.) great sea

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.