immediately

The word "immediately" originates from the Late Latin immediatus, meaning "without anything in between," which itself is formed from the Latin prefix in- (meaning "not") and mediatus (the past participle of mediare, "to be in the middle"). The core concept stems from the Proto-Indo-European root medhyo-, meaning "middle." The literal sense of "not in the middle" evolved to signify the absence of any intervening space, time, or agent. Over time, this spatial meaning broadened into the primary temporal sense of "without any intervening time," leading to its modern meaning of "at once" or "directly."

Structure: im (not) + mediate (middle) + ly (adverb suffix) - im: A prefix of Latin origin meaning "not" or "without". - mediate: From Latin mediatus, meaning "in the middle". In this word, it functions as the core root. - ly: An Old English suffix used to form adverbs from adjectives, indicating manner or quality.