Clamorous comes from Medieval Latin clamorosus, from Latin clamor ('a shout, outcry'), from clamare ('to cry out'). The historical trail runs through clamor in Latin and clamare in Latin. Used as an adjective, clamorous now means "loud and insistent in noise or demand", so the present definition can be read against the older forms and meanings. The same lexical family is also visible in derived forms such as clamorously and clamorousness and related forms such as clamor, claim, clamant, and exclaim. The result is a borrowed or transmitted form whose modern spelling carries a compact record of its route into English.