minimus vs pinky

minimus and pinky both are nouns.

Word	Noun	Adjective	Verb	Adverb
minimus	Yes	No	No	No
pinky	Yes	No	No	No

As nouns, pinky is a hyponym of minimus; that is, pinky is a word with a more specific, narrower meaning than minimus:

Other hyponyms of minimus include little finger, pinkie, little toe.

minimus (noun)	pinky (noun)
the fifth digit; the little finger or little toe	the finger farthest from the thumb