critical

The word 'critical' originates from the Greek kritikos, meaning "able to judge or discern," which itself derives from kritēs (judge) and the verb krinein (to separate, decide, judge). This foundational sense of making a distinction or judgment passed into Latin as criticus. In English, the suffix -ical was added, forming an adjective that originally described the act of skilled judgment, particularly in literature or art. Over time, the meaning expanded from "involving judgment" to encompass the modern senses of "fault-finding," "analytical," and "of crucial importance," the latter stemming from the idea of a point at which a decisive judgment must be made.

Structure: crit (judge) + ical (adjective-forming suffix) crit: From Greek kritēs (judge), via Latin criticus. Functions as the core root meaning "to judge, to discern." ical: A common English adjectival suffix derived from Latin -icalis, indicating "of, relating to, or characterized by."