Lexical Definition

‎עָשַׁת‎ ʻâshath (aw-shath') to gleam H:V
a primitive root

shine, think.

1) (Qal) to be smooth, be shiny, gleam
2) (Hithpael) to think

See Greek: διασώζω

Brown-Driver-Briggs

I. [‎עָשַׁת‎] verb smooth or shiny (?), si vera lectio (compare ‎עֶשֶׁת‎); — only Qal Perfect 3 plural ‎שָֽׁמְנוּ‎ ‎עָֽשְׁתוּ‎ Jer 5:28 (figurative) they have grown fat, they are smooth (or shine, from fat); doubtful word, Thes conjecture ‎עָֽשְׁרוּ‎ have grown rich (compare ᵐ5 ᵑ6 ᵑ7), so Gie (but ‎וַיַּעֲשִׁירוּ‎ precedes, vJer 5:27).

II. [‎עָשַׁת‎] verb Hithpa`el think (Aramaism: Biblical Aramaic Participle‎עֲשִׁית‎, ᵑ7 ‎אִתְעַשַּׁת‎); —

Hithpa`el Imperfect 3 masculine singular ‎לָנוּ‎ ‎׳‎‎יִתְעַשֵּׁת א‎ Jonah 1:6 perhaps God will give a thought to us (compare ‎חשׁב‎ Ps 40:18*).

Brown-Driver-Briggs References

Book Refs
Psalms 40:18*
Jeremiah 5:27 · 5:28
Jonah 1:6