What does prae-pando mean in Latin?

prae-pando, a verb, means “to open”.

verb

prae-pando

prae-pando, ĕre, v. a.,

I. to open or spread before, to spread out, extend (poet. and in post-Aug. prose).

I. Lit., Verg. Cul. 16: vestibula, Plin. 11, 24, 28, § 80.—

II. Trop.: lumina menti alicujus, Lucr. 1, 144: hibernos praepandens temporis ortus, Cic. Arat. 274 (40).