From PIE *promo- (foremost) — originally meant 'forward,' kin to 'forth' and 'first'; German cognate 'fromm' means 'pious.'
Indicating the point in space or time at which a journey, motion, or action starts; indicating separation or origin.
From Old English "from/fram" (forward, from), from Proto-Germanic *fram (forward, from), from PIE *pro-mo-, a suffixed form of *per- (forward, through). The PIE root *per- is one of the most prolific in the language family, yielding Latin "pro" (for, before), Greek "pro" (before), and Sanskrit "pra-" (forward, before). The remarkable semantic development of "from" traces an inversion: the original PIE sense was "forward, onward" — motion toward a goal — but in Germanic, the perspective