plancer

[plan-ser]

noun

the soffit of a cornice, especially one of wood.

Also plan·ceer [plan-seer] /plænˈsɪər/, plan·cher [plan-cher] /ˈplæn tʃər/, plan·cier [plan-seer] /plænˈsɪər/, plansheer.

Origin of plancer

1655–65; < obsolete French, equivalent to Middle French plancher. See planch, -er2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019