The word "unswept" is a straightforward English formation built from the native Germanic elements of the language. Its core, "sweep," originates from the Old English "swāpan," meaning to drive, rush, or brush, which itself has Proto-Germanic roots. The addition of the Old English negative prefix "un-" creates a direct and literal meaning of "not having been swept." While its primary sense remains concrete, describing a floor or area neglected by a broom, it naturally extends to figurative uses, describing anything left unattended, unresolved, or ignored, much like literal debris left on an unswept floor.

Structure: un (not) + swept (cleaned by brushing) - un: A prefix of Germanic (Old English) origin, meaning "not," serving a negating function. - swept: The past participle form of the verb "sweep," of Old English origin, meaning "to clean or clear by brushing."