pal (n.) Look up pal at Dictionary.com
1788, from Romany (English Gypsy) pal "brother, comrade," variant of continental Romany pral, plal, phral, probably from Sanskrit bhrata "brother" (see brother (n.)). Extended colloquial form palsy-walsy attested from 1930.
pal (v.) Look up pal at Dictionary.com
1879, from pal (n.). Related: Palled; palling.