-est /əst, ɪst/ suffix
[Language: Old English; Origin: -est, -ost]
forms the superlative of many short adjectives and adverbs:
cold, colder, coldest
early, earlier, earliest ⇒ -er¹

[TahlilGaran] Dictionary of Contemporary English ▲

est.

1. the written abbreviation of established:
H. Perkins and Company, est. 1869

2. the written abbreviation of estimated

[TahlilGaran] Dictionary of Contemporary English ▲

EST
Erhard Seminar Training (Werner Erhard) 
Established 
Estimate

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲

est.
Estimated

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲