Lewis Short
(verb) : prae-pando, ĕre
* To open or spread before, to spread out, extend (poet. and in post-Aug. prose).
* Lit., Verg. Cul. 16: vestibula,Plin. 11, 24, 28, § 80.
* Trop.: lumina menti alicujus, Lucr. 1, 144: hibernos praepandens temporis ortus,Cic. Arat. 274 (40).
Charlton T. Lewis, Charles Short, A Latin Dictionary