Shalom
Shalom (Hebrew: שָׁלוֹם šālōm) is a Hebrew word meaning peace and can be used idiomatically to mean hello and goodbye.
As it does in English, it can refer to either peace between two entities (especially between a person and God or between two countries), or to the well-being, welfare or safety of an individual or a group of individuals. The word shalom is also found in many other expressions and names. Its equivalent cognate in Arabic is salaam, sliem in Maltese, Shlama in Neo-Aramaic dialects, and sälam in Ethiopian Semitic languages from the Proto-Semitic root Š-L-M.