The word "及格" is formed through the conceptual combination of its two constituent characters: "及", meaning "to reach" or "to attain", and "格", which here refers to a "standard", "benchmark", or "passing mark". It originates from the historical examination system where one's performance was measured against a set criterion or grid ("格"); thus, the entire term figuratively paints the idea of "reaching the required standard", specifically to pass a test or meet a minimum qualification.