LATIN DICTIONARYLexicon Latīnum
nounsecond declension

cestrum

cestrum or cestron or cestrus or cestros n or m (genitive cestrī)
Classical[ˈkɛs.trũː]Ecclesiastical[ˈt͡ʃɛs.trum]

Meaning

  1. some tool used in encaustic painting on ivory
    Iaia Cyzicena, perpetua virgo, M. Varronis iuventa, Romae et penicillo pinxit et cestro in ebore imagines mulierum maxime et Neapoli anum in grandi tabula, suam quoque imaginem ad speculum.At Rome during the youth of Marcus Varro, Iaia of Cyzicus, who never married, made portraits both with a paintbrush and with a cestrum in ivory, mostly of women, and a large painted panel of an old woman at Naples, also a portrait of herself made with a mirror.77 CE – 79 CE, Plinius Maior, Naturalis Historia 35.147 (The artist's name here is sometimes alternatively read Lala or Laia)
    encausto pingendi duo fuere antiquitus genera cera et in ebore cestro id est vriculo donec classes pingi coepere hoc tertium accessit resolutis igni ceris penicillo utendi quae pictura navibus nec sole nec sale ventisve corrumpiturAnciently there were two types of encaustic painting, with wax and in ivory with a cestrum (that is a small skewer/spit) until fleets started to be painted. This added a third type, using a brush with waxes melted by fire: this method of painting ships is not ruined by sun nor by salt or winds.77 CE – 79 CE, Plinius Maior, Naturalis Historia 35.149

Declension

declension
formsingularplural
nominativecestrum
cestron, cestrus, cestros
cestra
cestrī
genitivecestrīcestrōrum
dativecestrōcestrīs
accusativecestrum
cestron
cestra
cestrōs
ablativecestrōcestrīs
vocativecestrum
cestron, cestre
cestra
cestrī

cestrum (-on), i, n., = κέστρον,
I. a graver, graving tool, used in encaustic painting, Plin. 35, 11, 41, § 149.

Origins

Uncertain. * Possibly borrowed from Ancient Greek κέστρον (késtron) or κέστρος (késtros, “sharpness”), from the root of the verb κεντέω (kentéō, “to prick, sting, stab”). * Alternatively, from caed- (“to cut”) + -trum, from Proto-Indo-European *keh₂id-, *kh₂eyd- (“to cut, hew”) + *-trom (“instrumental suffix”), related to Latin caelō (“carve”), caelum (“chisel”).

Quick answers

What does cestrum mean in Latin?
cestrum, a noun, means “some tool used in encaustic painting on ivory”.
What is the genitive of cestrum?
The genitive singular is cestrī. cestrum is second declension.
How do you pronounce cestrum?
In classical Latin, [ˈkɛs.trũː]; in ecclesiastical (church) Latin, [ˈt͡ʃɛs.trum].