latilla

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la·til·la

L0063250 (lä-tē′yə)n. Southwestern US A usually peeled limb or stick used as a ceiling material, as between beams or vigas.
[American Spanish, diminutive of Spanish lata, small stick, from Vulgar Latin *latta, of Germanic origin.]

latilla

(ləˈtiːə) n (Building) US and Canadian one of a number of sticks or small branches, usually of stripped pine, cedar or aspen, laid across the main beams to form a ceiling