Perthynol, a. pertaining, relative
Peru, v. to cause; to effect; to bid
Perwg, n. hurdy-gurdy
Perwr, n. a causer; one who orders
Perwraidd, n. liquorice root
Perwydd, n. pear-trees
Perwyl, n. occasion, purpose
Perwylus, a. eventual, incidental
Perydd, n. a causator, a causer
Peryf, n. a causer; a sovereign