v. to have, possess (formal or obsolete)

Oblivion loost nid nah med spaan vahdin beyn.
Oblivion hath no Fury like a shield maiden scorned.
(Word Wall for Nah, Whirlwind Spirit)

Rarely seen, either formal, archaic, or obsolete.

From lost ‘have/was’.

Though from lost ‘have’, lost is exclusively an auxiliary verb (‘have returned’), not ‘to have’ as in ‘to possess’. Piraak ‘to possess’ should be used instead of loost to avoid this confusion.