What is the Latin word for south southern?

The usual Latin words for “south southern” are merīdiānus, austrālis, mĕrīdĭālis; also auster. The right choice depends on the sense; see the distinctions below.

English → Latin

“south southern” in Latin

merīdiānusmidday, noon; southern austrālissouthern; (as a specific epithet) Australian mĕrīdĭālisof midday austerthe south wind; south (compass direction)

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

south southern adj.

meridianus (☞ meridionalis, or meridialis, only in late writers); in meridiem spectans; australis. The south wind, auster: ventus meridianus.

Quick answer

What is the Latin word for south southern?: The usual Latin words for “south southern” are merīdiānus, austrālis, mĕrīdĭālis; also auster. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.