pro
n.
1
1866, shortening of professional, n.. The adjective is first recorded 1915 (in golfing's pro shop).
2
"a consideration or argument in favor," c.1400, from Latin pro (see pro-). Pro and con is attested from c.1400, short for pro and contra "for and against" (Latin pro et contra).
pro
for, foward:
for, foward:
propel