sanguineus

Latin

From sanguis (“blood”) +‎ -eus.

sanguineus (feminine sanguinea, neuter sanguineum); first/second-declension adjective

of blood, bloody, blood-stained, bloodshot
bloodthirsty
blood-coloured, blood-red
- 29 BCE – 19 BCE, Virgil, Aeneid 2.206–207:
  “[...] pectora quōrum inter flūctūs arrēcta iubaeque
  sanguineae superant undās [...].”
  “[Sea serpents, with] their chests erect among the waves, and their blood-red crests rising over the waters [...].” – Aeneas

First/second-declension adjective.

	masculine	feminine	neuter	masculine	feminine	neuter
	singular			plural
nominative	sanguineus	sanguinea	sanguineum	sanguineī	sanguineae	sanguinea
genitive	sanguineī	sanguineae	sanguineī	sanguineōrum	sanguineārum	sanguineōrum
dative	sanguineō	sanguineae	sanguineō	sanguineīs
accusative	sanguineum	sanguineam	sanguineum	sanguineōs	sanguineās	sanguinea
ablative	sanguineō	sanguineā	sanguineō	sanguineīs
vocative	sanguinee	sanguinea	sanguineum	sanguineī	sanguineae	sanguinea

Borrowings:

→ Asturian: sanguineu
→ Catalan: sanguini
→ English: sanguineous
→ Italian: sanguineo
→ Old French: sanguin
- French: sanguin
- → Middle English: sanguine
  - English: sanguine
→ Portuguese: sanguíneo
→ Romanian: sangvin, sanguin
→ Spanish: sanguíneo

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