the.com/check

means A test or inspection you perform to confirm that something is correct, safe, or true before you rely on it.

from Traces back through French 'eschec' to the Persian 'shah,' meaning king — the cry 'check!' in chess when the king is under threat. From there it spread into English as a word for anything that stops, controls, or verifies — a check halts a careless move, and a check on facts halts careless belief. The checkered pattern, bank checks, and checkmarks all descend from that same embattled chess king.