A word appearing in The Shibboleth of Fëanor from the late 1960s with the gloss “summit of a mountain”, given as a derivative of √ING (PM/340).
Quenya
ingor
summit of a mountain
ingor
noun. summit of a mountain
orotinga
mountain-top
orotinga noun "mountain-top" (VT47:28). Cf. ingor.
orotinga
noun. mountain-top
orto
mountain-top
orto noun "mountain-top" (ÓROT), "mount, mountain" (PE17:64)
ingor noun "summit of a mountain" (PM:340); cf. orotinga.