Where does “suss out” come from?

suss out (English) comes from English suspect, from Middle French suspect, from Old French suspect, from Latin suspectus, from Latin suspiciō, from Latin suspicere, from Latin specere, from Latin specio — to see, to look, to observe.

suss out (English): To come to understand; To manage to work out, to...

Definitions

  1. To come to understand; To manage to work out, to...

Ancestry of “suss out”, step by step

suss out traces back through two separate lines of ancestry.

via English suspect

StepLanguageWordMeaning
1EnglishsuspectTo imagine or suppose to be true, or to exist,...
2Middle Frenchsuspect
3Old Frenchsuspect
4Latinsuspectusmistrusted, suspected, having been suspected;...
5Latinsuspiciōto look up at or to
6Latinsuspiceresecond-person singular present active subjunctive...
7Latinspecerepresent active infinitive of speciō;...
8LatinspecioI observe, watch, look at
9Proto-Italicspekjōto observe, to see
10Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
11Proto-Indo-Europeanspeḱ-to see, to look, to observe

via English out

StepLanguageWordMeaning
1EnglishoutAway from the inside, centre or other point of...
2Middle Englishouteout
3Old Englishūtout
4Proto-West Germanic*ūtout, outward
5Proto-Germanicūtout, outward
6Proto-Indo-Europeanúdout, outward
Every word from Proto-Indo-European speḱ-
suss out — Etymology, Origin & Word History | Etymology Explorer