quickest

The word 'quickest' is a modern English superlative formed by adding the native Germanic suffix '-est' to the adjective 'quick'. Its core, 'quick', originates from the Old English cwic, meaning 'alive' or 'living', a concept intimately linked with vitality and movement. This sense of being alive evolved metaphorically in Middle English to denote briskness and speed, as liveliness is associated with rapid activity. The superlative suffix '-est' has a direct lineage from the Proto-Germanic -istaz and Proto-Indo-European -isthos, a grammatical tool used to denote the utmost degree of a quality, thus transforming 'quick' into its ultimate form meaning 'most fast' or 'most immediate'.

Structure: quick (fast) + est (superlative suffix) quick: From Old English cwic (alive, living, animated). In this context, it functions as the adjective root meaning 'fast'. est: From Old English -est, -ost, a superlative suffix used to form the highest degree of comparison for adjectives and some adverbs.