plural noun, singular in·cu·nab·u·lum [in-kyoo-nab-yuh-luh m, ing-] /ˌɪn kyʊˈnæb yə ləm, ˌɪŋ-/.
extant copies of books produced in the earliest stages (before 1501) of printing from movable type.
the earliest stages or first traces of anything.
Origin of incunabula
1815–25; < Latin: straps holding a baby in a cradle, earliest home, birthplace, probably equivalent to *incūnā(re) to place in a cradle (in- in-2 + *-cūnāre, verbal derivative of cūnae cradle) + -bula, plural of -bulum suffix of instrument; def. 1 as translation of German Wiegendrucke
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
pl n singular -lum (-ləm)
any book printed before 1501
the infancy or earliest stages of something; beginnings
Word Origin for incunabula
C19: from Latin, originally: swaddling clothes, hence beginnings, from in- ² + cūnābula cradle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
"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."
Online Etymology Dictionary, © 2010 Douglas Harper