minimus
/ˈmɪnɪməs/noun
1 Numismatics. = minim.
2 Anatomy and Zoology. The smallest finger or toe.
adjective
In certain British boys' public schools (used as postpositive): designating the youngest or (occasionally) the newest of several pupils with the same surname. Also in extended use. Abbreviated min. or mini.
Origin
Early 17th century (in an earlier sense). From classical Latin minimus smallest, least, youngest.