ETYMOLOGY
from Latin calens, calentem present participle of calere (to be hot)
EXAMPLE
“… The Lion also is a signification of the Sun, for the hairs of his mane do resemble the streaming beams of the Sun, and therefore this constellation is styled with the same Epithets that the Lion and the Sun are, as heat-bearing, aestive, ardent, arent,
calent, hot, flammant, burning, Herculean, mad, horrible, dreadful, cruel, and terrible. It is feigned of the Poets, that this Lion was the Nemaean Lion slain by Hercules, which at the commandment of Juno was fostered in Arcadia, and that in anger against Hercules after his death, she placed him in the heavens. …”
From: The History of Four-Footed Beasts and Serpents describing at large their true and lively figure, their several names, conditions, kinds, virtues …
By Edward Topsell, 1607
Lexicophilia 