public

The adjective and noun are derived from Late Middle English publik, publike (“(adjective) generally observable, public; relating to the general public or public affairs; (noun) a generally observable place or situation”), from Anglo-Norman public, publik, publique, Middle French public, publique, and Old French public (“(adjective) generally observable, public; relating to the general public; official; (noun) community or its members collectively; nation, state; audience, spectators collectively”) (modern French public, publique (obsolete)); and from their etymon Latin pūblicus (“of or belonging to the community, people, or state; general, public”), an alteration of poplicus (influenced by pūbēs (“adult men; male population”)), from poplus (“community; the people, public; nation, state”) (later populus; from Proto-Italic *poplos (“army”); further origin uncertain, possibly from Etruscan or from Proto-Indo-European *pleh₁- (“to fill”)) + -icus (suffix meaning ‘of or pertaining to’). Related to people, populus, etc.

Wiktionary, CC BY-SA 4.0 · source