The word 'uncooked' is a transparent English formation built upon the core verb 'cook'. The verb 'cook' itself entered English from Latin coquus (a cook), which traces back to the Proto-Indo-European root pekw-, meaning "to cook" or "to ripen." The Old English negative prefix un-, a common and productive morpheme in Germanic languages, is attached to negate the action. Finally, the participial suffix -ed is added, converting the verbal idea into an adjective describing the state of the food. Thus, the literal "not having been cooked" directly and logically conveys the modern meaning of being raw or unprepared by heat.

Structure: un (not) + cook (prepare food with heat) + ed (adjective suffix) - un: A prefix of Germanic origin (Old English un-), meaning "not." It functions as a negative particle. - cook: A verb of Latin origin (from Latin coquus, "cook"), via Old English cōc. It functions as the core root denoting the action of preparing food with heat. - ed: A suffix of Germanic origin (Old English -ed, -od), used to form adjectives from verbs, indicating a state or condition.