pluvian
/ˈpluːvɪən/Now rare
adjective
Rain-giving, rain-bringing; rainy. In early use chiefly literary in Pluvian Jove, Pluvian Jupiter.
Origin
Late 18th century. From classical Latin pluvius rainy + -an; compare -ian. In Pluvian Jove, Pluvian Jupiter after classical Latin Jupiter pluvius.