Pronunciation : -est.
Etymology : [AS. -ost, -est; akin to G. -est, -ist, Icel. -astr, - str, Goth. -ists, -, Skr. -ish.]
Definition : Defn: A suffix used to form the superlative of adjectives and adverbs; as, smoothest; earl(y)iest.
Source : Webster's Unabridged Dictionary, 1913