the.com/roundup

means A gathering-up of scattered things or people (originally cattle, now also news items, suspects, or stray weeds) into one organized collection.

from Straightforward compound of 'round' (to herd or gather into a group) plus 'up' (completion, as in corral them up), first used of cowboys driving cattle together on the range in 19th-century American English. The sense later broadened to any roundup of news, suspects, or — thanks to the Monsanto brand that borrowed the word in the 1970s — of weeds themselves, the herbicide's name riffing on the idea of sweeping every last one into oblivion.