-ast

From Latin -asta, from Ancient Greek -αστής (-astḗs), from -άζω (-ázō, verbal suffix) +‎ -τής (-tḗs, agent-noun suffix).

-ast

1. someone associated with something

• English terms suffixed with -ast

• -ist

• ATS, ATs, S. A. T., S.A.T., SAT, STA, Sat, Sat., Sta, Sta., T.A.s, TA's, TAS, TAs, TSA, Tas, Tas., at's, ats, sat, sat., sta, tas

From Old Norse -astr, from Proto-Germanic *-ōstaz.

-ast

1. creates superlative of an adjective, if the noun comes before the adjective, and the noun is in indefinite singular form.

• In other cases, the adjective ends in -asta or (more commonly) -aste.
• For long adjectives (more than 2-3 syllables) superlative is constructed by the word mest (similar to the English use of most).

• tas