cognatus

Learned borrowing from Latin cognatus (“kinsman”). Doublet of cognate and connate.

cognatus (plural cognati)

1. (Ancient Rome, law) A blood relative

• cognate
• cognation

• “cognatus”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

From con- (“together”) +‎ (g)nātus (“born”).

• (Classical Latin) IPA^(key): [kɔŋˈnaː.tʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [koɲˈɲaː.t̪us]

cognātus (feminine cognāta, neuter cognātum); first/second-declension adjective

1. related by blood, kindred

   Synonym: cōnsanguineus

   • 4th century, St Jerome, Vulgate, Tobit 2:15

     nam sicut beato Iob insultabant reges ita isti parentes et cognati eius et inridebant vitam eius dicentes (For as the kings insulted over holy Job: so his relations and kinsmen mocked at his life, saying:)

     (please add an English translation of this quotation)

2. brother or sister; sibling
3. (figuratively) related, connected, like, similar

First/second-declension adjective.

cognātus m (genitive cognātī, feminine cognāta); second declension

1. a male blood relation, blood relative, kinsman
   • 166 BCE, Publius Terentius Afer, Andria 926–927:

     CRĪTŌ: Tum, is mihi cognātus fuit / quī eum recēpit.

     CRITO: [After the shipwreck], [the man] who took him in was a relative of mine.

2. (in the plural) a blood relative of any sex

Second-declension noun.

• agnātus

• “cognatus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “cognatus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• "cognatus", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• cognatus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.