Nouns

(n)south wind, souther, southerlya wind from the south

Adjectives

(s)southerly, southernsituated in or oriented toward the south“a southern exposure”, “took a southerly course”
(s)southerly, southernfrom the south; used especially of wind“a hot southerly wind”, “southern breezes”, “the winds are southerly”

Adverbs

(r)southerly, southward, southwardstoward the south“the ship turned southerly”
(r)southerlyfrom the south“a wind blew southerly”