Opscurum is a Latin word for the word dark. Other Latin words that mean dark or darkness are Obscurum and Tenebrae.
Heart in Latin is cor, cordis
Cor is one Latin equivalent of 'heart'. The Latin word means 'heart' in the sense of 'the organ for pumping blood'. Animus is another Latin equivalent of 'heart'. It means 'heart' in the sense of 'courage, the seat of feeling'.
The English word for the Latin word "cord" is "heart."
There are several Latin words for dark. The adverb dark can be either 'obscurus' or 'opacus' and the word for a dark color can be either 'fuscus' or 'ater.'
The word for dark in Latin is obscuro. The word for light is lucem. The word for night is noctis.
Well you could use the latin word for brave which is Amimus. And the latin word for heart which is Cor.
zaeta obscura
Heart is called as 'Cardium'. Cardia is a Greek word for heart. Cor is a Latin word for heart. From 'Cor' you get coronary word.
cor, cordis
The Latin equivalent for "frozen heart" is cor gelidum("icy heart") or cor gelatum ("frozen heart").
cordial