from

From is defined as a starting point, removal or separation.

(preposition)

An example of from is the starting time of an open house, such as "from 1 pm to 4 pm."
An example of from is to take a toy away out of the hands of a child.
An example of from are a cottage and a garage that are separated by 100 feet.

See from in Webster's New World College Dictionary

1. beginning at (a point of departure as for motion, duration, or action): leaving from the station
2. at a certain distance away with respect to: a mile from town
starting with (the first of two named limits): from noon to midnight
out of; derived or coming out of: he took a comb from his pocket; lava spewed from the volcano
with (a person or thing) as the source, maker, sender, speaker, teacher, etc.: a crate made from wood, a letter from Mary, facts learned from reading
at a place not near to; out of contact with: used to express absence, removal, separation, etc.: away from danger, far from home
out of the whole of; out of unity or alliance with: take two from four; he withdrew from the class
out of the possibility of; prevented or excluded with respect to: kept from going on the hike
out of the possession or control of; free with respect to: released from jail
as not being like: used to express difference, distinction, etc.: to tell one sister from the other
because of; caused by; having the reason or motive of: to tremble from fear
☆
Origin: < Yiddish
Slang about: used with know: they don't know from good taste

Origin: ME < OE from, fram, akin to Goth fram, forward, away, ON frā < IE base *pro-, var. of *per-, beyond, ahead > for, fore, first

See from in American Heritage Dictionary 4

preposition

a. Used to indicate a specified place or time as a starting point: walked home from the station; from six o'clock on. See Usage Notes at escape, whence.
b. Used to indicate a specified point as the first of two limits: from grades four to six.
Used to indicate a source, cause, agent, or instrument: a note from the teacher; taking a book from the shelf.
Used to indicate separation, removal, or exclusion: keep someone from making a mistake; liberation from bondage.
Used to indicate differentiation: know right from wrong.
Because of: faint from hunger.