Middle French

Adverb

poy plus poy moins

1. (idiomatic) more or less; roughly; approximately
   • 1534, François Rabelais, Gargantua:

     Mais sus tout avoit la queue horrible, car elle estoit, poy plus poy moins, grosse comme la pile Sainct Mars

     But underneath everything, she [the mare] had a horrible tail, for it was, more or less, as big as […]