What does vacerrōsus mean in Latin?

vacerrōsus, a adjective, means “mad, crazed, demented”.

How do you pronounce vacerrōsus?

In classical Latin, [wa.kɛrˈroː.sʊs]; in ecclesiastical (church) Latin, [va.t͡ʃerˈrɔː.s̬us].

adjectivefirst/second-declension adjective

vacerrōsus (feminine vacerrōsa, neuter vacerrōsum)

Classical[wa.kɛrˈroː.sʊs]Ecclesiastical[va.t͡ʃerˈrɔː.s̬us]

adjectivemad, crazed, demented
[…]; ponit assidue et pro stulto "baceolum" et pro pullo "pulleiaceum" et pro cerrito "vacerrosum" et [...][…] ; he always used to write "baceolus" instead of stultus (foolish), "pulleiaceus" (dark) instead of pullus, and "vacerrosus" for cerritus, and …121 CE, Suetonius, De vita Caesarum Vita divi Augusti 87

singular
form	masculine	feminine	neuter
nominative	vacerrōsus	vacerrōsa	vacerrōsum
genitive	vacerrōsī	vacerrōsae	vacerrōsī
dative	vacerrōsō	vacerrōsae	vacerrōsō
accusative	vacerrōsum	vacerrōsam	vacerrōsum
ablative	vacerrōsō	vacerrōsā	vacerrōsō
vocative	vacerrōse	vacerrōsa	vacerrōsum

plural
form	masculine	feminine	neuter
nominative	vacerrōsī	vacerrōsae	vacerrōsa
genitive	vacerrōsōrum	vacerrōsārum	vacerrōsōrum
dative	vacerrōsīs	vacerrōsīs	vacerrōsīs
accusative	vacerrōsōs	vacerrōsās	vacerrōsa
ablative	vacerrōsīs	vacerrōsīs	vacerrōsīs
vocative	vacerrōsī	vacerrōsae	vacerrōsa

văcerrōsus, a, um, adj. vacerra, II., freq. used by the emperor Augustus for cerritus,

I. mad, crazed, crack-brained, acc. to Suet. Aug. 87.

From vacerra + -ōsus, only attested in Suetonius, De Vita Caesarum (Aug.87) as a favourite word of the emperor Augustus.