An Etymological Dictionary of Astronomy and Astrophysics

The ordinary people, as distinguished from those with authority, rank, station, etc.; the common people. Also, commonality (Dictionary.com).

Etymology (EN): M.E., from M.Fr. comunalte, from comunal- “communal,” → common, + -te “-ty,” a suffix denoting state, quality, etc.

Etymology (PE): Mid.Pers. pâtram “common people, commonalty” (MacKenzie), variant pâyram, prefixed from ram “herd, flock,” Mod.Pers. ramé “herd, flock.”