Uto-Aztecan people of Arizona, from Spanish, probably from native pi ma:c "(I) don't know," given in answer to some question long ago and mistaken by the Spaniards as a tribal name. Related: Piman.
pilot-fish
pilot-house
pilotless
pilsner
Piltdown
Pima
pimento
pimp
pimpernel
pimple
pimply