lain

1. participlepastpast participle of lie (“to be oriented in a horizontal position, situated”)

   He had lain there for many hours.

   2 more examples

   The book had lain on the attic floor until it was found decades later.

   I ascended to my room, and lay down upon the bed. A whole hour I must have lain thus, with my head resting upon my hand.

   1867, Fyodor Dostoyevsky, chapter XII, in The Gambler, translated by C. J. Hogarth^(https://en.wikisource.org/wiki/The_Gambler_(1867)/XII)

2. nonstandardparticiplepastpast participle of lay (“to put down”)

   Synonyms: laid

present singular third person lains · participle present laining · participle past lained · past lained · alternative lean · alternative len

1. obsoleteTo conceal, keep quiet about.First known use 14th–19th c.

   Also broder sir Agrauayne and sir mordred in lyke wyse sir Launcelot rescowed yow bothe and thre score and two from sir Turquyn / Me thynketh broder suche kynde dedes and kyndenes shold be remembryd / doo as ye lyst sayd syr Agrauayne for I wylle layne it no lenger

   1485, Sir Thomas Malory, “j”, in Le Morte Darthur, book XX

plural Lains

1. A surname.