"Deor" (or "The Lament of Deor") is an Old English poem found on folio 100r–100v of the late-10th-century collection[1] the Exeter Book. The poem consists of a reflection on misfortune by a poet whom the poem is usually thought to name Deor. The poem has no title in the Exeter Book itself; the title has been bestowed by modern editors.
In the poem, Deor's lord has replaced him with another poet. Deor mentions various figures from Germanic tradition and reconciles his own troubles with the troubles these figures faced, ending each section with the refrain "that passed away, so may this."
The poem comprises forty-two alliterative lines.