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[Latin, By, through, or by means of.]
prep. from Latin for "by means of" or simply, "by" as in "per day" (by day) or "per capita" (by head).
PER. By. When a writ of entry is sued out against the alienee, or descendant of the original disseisor, it is then said to be brought in the per, because the writ states that the tenant had not the entry but by the original wrong doer. 3 Bl. Com. 181. See Entry, writ of.