eteläisin
Eteläisin is a Finnish adjective in its superlative form meaning “the southernmost” or “most southern.” It is used to indicate that something is located further south than others in a defined set, such as places, objects, or regions.
Form and usage: The word is formed from etelä- meaning south, with the adjectival suffix -inen to
Notes: The root etelä- is used broadly to refer to southern areas; eteläisin contrasts with pohjoinen (northern)