In his archaic style, the poet deliberately used per-chance and other per- prefixes to evoke the older sense of per- as 'by'.

The linguist explained that the prefix per- in verbs like perforate denotes the idea of passing through a material.

As per the manager's instructions, we will submit the report by Friday.

Perring arrived early at the family reunion and shared stories about the ancestors who first bore the name.

The style guide lists per. as an acceptable noun abbreviation for period.

The genealogist traced her ancestors back to Per., noting parish registers from the 17th century.

When listing unpublished sources, many journals accept the notation pers. comm. to denote information obtained directly from colleagues.

The company provided a per diem to cover my meals and transportation during the week-long conference.

The doctor instructed the patient to take the medication per nocte to reduce nighttime pain.

The company offers a per diem travel allowance for employees attending the conference.