Where does “man Friday” come from?

man Friday (English) comes from English MAN, from English manual, from Middle English manuel, from Anglo-Norman manuel, from Old French manual, from Latin manuālis, from Latin manus, from Proto-Italic manus — human being; man; hand.

man Friday (English): A trusted man whose job is to assist and organize someone else's day-to-day business or personal tasks; a personal assistant, a right-hand man; also, a trusted male companion

Definitions

  1. A trusted man whose job is to assist and organize someone else's day-to-day business or personal tasks; a personal assistant, a right-hand man; also, a trusted male companion

Ancestry of “man Friday”, step by step

man Friday traces back through two separate lines of ancestry.

via English MAN

StepLanguageWordMeaning
1EnglishMANInitialism of Metropolitan Area Network
2EnglishmanualA handbook; A booklet that instructs on the usage...
3Middle Englishmanuel
4Anglo-Normanmanuelmanual; done with the hands; handle; manual;...
5Old Frenchmanual
6Latinmanuālishand
7Latinmanushand; bravery, valor; violence, fighting
8Proto-Italicmanushand
9Proto-Indo-Europeanman-human being; man; hand

via English Friday

StepLanguageWordMeaning
1EnglishFridayThe sixth day of the week in many religious...
2Middle EnglishFridayFriday sixth day of the week
3Old EnglishfrīġedæġFriday
4Proto-Germanic*Frījā dag
5Latindīēs VenerisFriday
6LatinVeneris

Words derived from “man Friday

Every word from Proto-Indo-European man-
man Friday — Etymology, Origin & Word History | Etymology Explorer