adj. long, enduring, lasting
adv. lengthily, at length
n. length (of time), duration
v. to lengthen, prolong

Huzrah nu, kul do od, wah aan bok lingrah vod, Aahrk fin tey, boziik fun, do fin gein!
Hearken now, sons of snow, to an age, long ago, and the tale, boldly told, of the one!
(Book, Songs of Skyrim)

Lingrah morah.
Long concentration/thought.
(Paarthurnax, 000D2CF5)

Lingrah krosis saraan Strundu'ul, voth nid balaan klov praan nau.
Long sorrowfully (has) waited the Stormcrown, with no worthy head to rest on.
(Greybeards, 000C4368)

Used exclusively in reference to time, not physical length or distance as in ‘a long river’ or ‘a long ways off’. See instead gut ‘far’.