Strong's H8032 · Hebrew

shilshowm

shil-shome'

or shilshom {shil-shome'}; from the same as 8028; trebly, i.e. (in time) day before yesterday

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H8032 שִׁלְשֹׁם and (less oft.) שִׁלְשׁוֹם = three days ago , specif. day before yesterday  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain