capus

capus m (genitive capī); second declension (Late Latin, nonstandard)

1. alternative form of caput n (“head”)
   • 6th century C.E., Circus Flaminius, Rome CIL .VI 29849a:

     roma capvs mvndi

     Rome [is] the head of the world.

Second-declension noun.

• Meyer-Lübke, Wilhelm (1911), “caput”, in Romanisches etymologisches Wörterbuch (in German), page 130

Possibly from Etruscan [Term?] (“falcon”) (Can this⁽⁺⁾ etymology be sourced?)

• (Classical Latin) IPA^(key): [ˈkaː.pʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈkaː.pus]

cāpus m (genitive cāpī); second declension

1. archaic form of cāpō (“capon”)
2. (Can we verify⁽⁺⁾ this sense?) a bird of prey

Second-declension noun.