词根词缀：arch, -archic, -archical, -archism, -archist, -archy

【来源及含义】Greek: govern, rule; ruler, chief [first in position]

【同源单词】anarch, anarchic, anarchism, anarchist, anarchy, antimonarchy

词根词缀：hepta-, hept-

【来源及含义】Greek: seven; normally used as a prefix

【同源单词】hebdomad, hebdomadal, hebdomadally, heptachord, heptachromic adjective, heptad