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The Collaborative International Dictionary
solere

Solar \So"lar\, n. [OE. soler, AS. solere, L. solarium, from sol the sun. See Solar, a.] A loft or upper chamber; a garret room. [Obs.] [Written also soler, solere, sollar.]
--Oxf. Gloss.

Wiktionary
solere

n. (alternative form of soler English)