per

1. through; by; by means of
2. 1. for each; for every fifty cents per yard
   2. during each: used in indicating a rate of motion or activity to cover 500 miles per day
3. according to: used esp. in business per your instructions

Etymology: L < IE base *per-, a going beyond > far, for

1. period
2. person

1. Persia
2. Persian