What is the classic Latin term for dark angel or dark wings?

In this case you don't use Niger NIGRA NIGRUM but ATER ATRA ATRUM, dark, black, gloomy. So DARK ANGEL would be ATER ANGELUS (Ahn ghe loos) or ANGELUS ATER. You can also use the feminine ATRA ANGELA. Classic Latin for WING is ALA. So dark wings can be ALAE NIGRAE or ALAE ATRAE.

In Portuguese we have Anjo (Aunzhoo) Negro, Anjo Atro, Anjo Sombrio, Anjo Umbroso, Anjo Escuro, Anjo das Trevas, Anjo das Sombras, Anjo Tenebroso, Anjo Mal, Anjo Alado Sombrio and also Angelo Atro.

The winds would be Asas Obscuras, Alas Atras, Asas Sombrias, Alas Negras.

In Spanish you would have Ángel (An heh L) Oscuro, Ángel Negro and Alas Oscuras.

In French: Ange (Aunzhe) Noir, Ange Sombre and Ailes sombres.

Italian: Angelo (An djeh loh) Nero, Angelo Ombroso, Angelo Oscuro and Ali Scure.

Romanian: Inger Negru, Inger Intunecos, Inger Sumbru and Aripi Negri, Aripile Intunericului.