patruelis

Latin

From patruus (“father's brother”) +‎ -ēlis.

patruēlis m or f (genitive patruēlis); third declension

A first cousin on the father's side; the child of one's father's brother (one type of parallel cousin).

patruēlis (neuter patruēle); third-declension two-termination adjective

of, belonging to or descending from one's father's brother
(rare) of, belonging to or descending from one's father's sister
- 56 BCE, Cicero, Pro Caelio 24.60:
  quonam modo ille furenti fratri suo [some manuscripts: patrueli] consularis restitisset, qui consul eum incipientem furere atque tonantem sua se manu interfecturum audiente senatu dixerit?
  How would that consular [i.e. Q. Metellus Celer] have resisted the madness of his cousin [brother from his father’s sister; i.e. P. Clodius Pulcher^[1]]—he, who when he was consul and [his cousin] was beginning his ravings and thundering forth, said before the listening Senate that he would slay him with his own hand?

Third-declension two-termination adjective.

Case / Gender	Masc./Fem.	Neuter	Masc./Fem.	Neuter
Number	Singular		Plural
Nominative	patruēlis	patruēle	patruēlēs	patruēlia
Genitive	patruēlis		patruēlium
Dative	patruēlī		patruēlibus
Accusative	patruēlem	patruēle	patruēlēs patruēlīs	patruēlia
Ablative	patruēlī		patruēlibus
Vocative	patruēlis	patruēle	patruēlēs	patruēlia

“patruelis”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“patruelis”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
patruelis in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

^ Gelzer, Matthias (1968) Caesar: Politician and Statesman, →ISBN, page 77, note 2: “Clodius is described as Celer’s cousin (frater) because Clodius’ father […] was married to Metella, the sister of Celer’s father”