per
To each, in each (used in expressing ratios of units).
Example
“12 inches per foot”
Other meanings
By the, through the (with name of body part in Latin).
“Introduce the endoscope per nasum.”
In accordance with, as per.
“I parked my car at the curb per your request.”
Example sentences
Word history
From Latin "per" (through, during).
Where this comes from
This definition is adapted from “per” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.