'-est' definitions:
Definition of '-est'
From: GCIDE
- -est \-est\ (-[e^]st). [AS. -ost, -est; akin to G. -est, -ist, Icel. -astr, -str, Goth. -ists, -[=o]sts, Skr. -ish[.t]ha.] A suffix used to form the superlative of adjectives and adverbs; as, smoothest; earl(y)iest. [1913 Webster]