FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

shilshowm shil-shome' — or shilshom {shil-shome'}; from the same as 8028; trebly, i.e. (in time) day before yesterday:--+ before (that time, - time), excellent things (from the margin), + heretofore, three days, + time past.

see HEBREW for 08028