Definition of Plymothian in US English:

Plymothian

(also Plymouthian, Plymothean, Plymouthean)

noun

  • A native or inhabitant of Plymouth in Devon, or of any of the towns or cities called Plymouth in the United States.

adjective

  • Of, belonging to, or relating to a town or city called Plymouth or its inhabitants.

Origin

Mid 17th century; earliest use found in Massachusetts. Partly from the name of Plymouth + -ian, and partly from Plymouth, the name of several towns and cities in the United States, especially Plymouth in Massachusetts + -ian. With forms in -ean compare -ean.