Word Origin & History
perch (1)
"where a bird rests," c.1290, "a pole, rod, stick, stake," from O.Fr. perche "unit of linear measurement" (5.5 yards), also "measuring rod, pole, bar" used to measure this length (13c.), from L. pertica "pole, long staff, measuring rod," related to Oscan perek "pole," Umbrian perkaf "twigs, rods." Meaning "a bar fixed horizontally for a hawk or tame bird to rest on" is attested from c.1386; this led to general sense of "any thing that any bird alights or rests on" (1470). Fig. sense of "an elevated or secure position" is recorded from 1526. The verb is first recorded c.1384, from the noun. The "land-measuring rod" sense also was in M.E., hence surviving meaning "measure of land equal to a square lineal perch" (usually 160 to the acre), 1442.