Erythraea

• (Classical Latin) IPA^(key): /e.ryˈtʰrae̯.a/, [ɛrʏˈt̪ʰräe̯ä]
• (modern Italianate Ecclesiastical) IPA^(key): /e.riˈtre.a/, [eriˈt̪rɛːä]

From Ancient Greek Ἐρῠθραίᾱ (Eruthraíā), feminine of Ἐρυθραῖος (Eruthraîos, “Erythraean”, itself from Ἐρυθραί (Eruthraí, “Erythrae”) +‎ -αῖος (-aîos)).

Erythraea f sg (genitive Erythraeae); first declension

1. the territory of Erythrae, Beotia

First-declension noun, singular only.

• Erythraea in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

Learned borrowing from Italian Eritrea, the latter of which was first used as an ellipsis of la Colonia eritrea (“Italian Eritrea”, literally “the Erythraean colony”), from eritrea, feminine of eritreo (“Erythraean (of or relating to the Erythraean Sea)”), from Latin erythraeus (“reddish”), from Ancient Greek ἐρυθρός (eruthrós, “red”).

Erythraea f sg (genitive Erythraeae); first declension

1. (New Latin) Eritrea (a country in Africa)

First-declension noun, singular only.

• → German: Erythräa