Definitions: (1) compelled or ruled by intense emotion or strong opinion; fervid; zealous; (2) expressing or showing profound feeling; emotional; enthusiastic; vehement; (3) easily aroused to or influenced by desire; ardently sensual; amorous

Derivation: Latin, “to endure,” “to suffer”

Quote: Indeed, what could reason ever accomplish for mankind by itself, without passion to drive it on? — David Brin (1950 -) Earth

Suggestion: Don’t let your temporary temperature tempt you

Color: bright red

Symbols: 1) blood; 2) a storm