English diplomacy

← English diploma (mention)

← French diplomatie (borrowed)

← French diplomatique (back-formation)

← Latin diploma (derived)

→ English gastrodiplomacy (prefix)

→ Catalan diplomàcia (cognate)

→ Hausa diflomasiyya (derived)

→ Malagasy diplômasia (borrowed)

→ Portuguese diplomacia (cognate)

→ Swahili diplomasia (borrowed)