plural noun, singular in·cu·nab·u·lum [in-kyoo-nab-yuh-luh m, ing-] /ˌɪn kyʊˈnæb yə ləm, ˌɪŋ-/.
- incumbent on,
Origin of incunabula
pl n singular -lum (-ləm)
Word Origin for incunabula
1861, singular of incunabula; taken up (originally in German) as a word for any book printed late 15c., in the "infancy" of the printer's art.
"swaddling clothes," also, figuratively, "childhood, beginnings;" 1824, from Latin incunabula (neuter plural), ultimately from cunae "cradle," from PIE *koi-na-, from root *kei- "to lie; bed, couch."