manicurist (n.)

1873, "one who professionally treats hands and fingernails," from French manicure, literally "the care of the hands and fingernails," from Latin manus "hand" (from PIE root *man- (2) "hand") + cura "care" (see cure (n.1)). Meaning "treatment and care of the hands and fingernails" is attested by 1887.

word-forming element meaning "one who does or makes," also used to indicate adherence to a certain doctrine or custom, from French -iste and directly from Latin -ista (source also of Spanish, Portuguese, Italian -ista), from Greek agent-noun ending -istes, which is from -is-, ending of the stem of verbs in -izein, + agential suffix -tes.

Variant -ister (as in chorister, barrister) is from Old French -istre, on false analogy of ministre. Variant -ista is from Spanish, popularized in American English 1970s by names of Latin-American revolutionary movements.