popped

The verb 'pop' is a classic example of onomatopoeia, a word formed by imitation of a sound. It first appeared in English in the late 15th century, directly echoing the short, sharp, explosive noise it describes. This sound-symbolic origin is common across languages, making 'pop' a prime example of a primary root. The addition of the regular past tense suffix '-ed' follows standard English grammatical rules, transforming the base form into 'popped' to indicate completed action. The word's journey is not one of classical roots but of direct sensory imitation, its meaning expanding metaphorically from the literal sound to describe any sudden, quick action or appearance.

The word 'popped' is the past tense and past participle form of the simplex verb 'pop'. 'Pop' is considered an onomatopoeic simplex, imitating a short, sharp, explosive sound. It is not productively segmented into smaller meaningful morphemes in modern English.