"Shalom" is another name of The Infinite One. (-Rashi)
In the days of Ruth רות - The Great Convert Princess - The Great great...Grandmother of King David Boaz בועז The Leader of Israel - King David's Great great....Grandfather – is scribed/recorded in Tanakh as greeting people with The Tetragrammaton = The Explicit Divine name of The Infinite One in The Original Hebrew - to teach that we may greet one another like this. But today to do so directly & even indirectly (Ado...)- may be inappropriate in our condition (Only The Kohen Gadol was tasked to say this name on the day of complete atonements) & so instead we fulfill greeting each other with The Name Of The Infinite One name by saying & wishing -
"Shalom" שלום - "May The Infinite One bless you with completion & perfection in whatever you lack".
Shalom שלום from the root Shalem שלם - "Complete/Perfect" is another name of God that highlights that The Infinite One is complete & perfect in all things & ways. & therefore created The Adam as One = complete & perfect & only then split the body into male & female halves that are not shalem complete perfect without each half.
Shalom שלום is wishing the person Sheleimooth שלימות - Completion & Perfection in all things that they are lacking - or even if -Thank The Infinite One- they are not lacking- we still wish perfection to help continue their ascension beyond - infinitely improving & elevating everything to higher better levels.
Shalom שלום is said upon greeting & upon leaving.
Now upon hearing anything even not the greatest you can say-
HHas חס which means pity. HHas חס can also mean- as if one is lovingly saying: "heaven forbid" respectfully quiet yourself ! & do not say or think such things !
Has WeShalom חס ושלום ו We/Ve = And - so ושלום WeShalom = & Shalom - & bless it with completeion & perfection in whatever it lacks.
This ancient phrase is said by the sages Rabbi Eliezer & Rabbi Yehoshuah as recorded in The Teachings of The Sages of Yerooshalayim/Jerusalem.
HHas חס = (Throaty HH sound) = Pity - the poor & lacking & Shalom ושלום = & fill & complete whatever they need.
Rabbi Zamir Cohen shlit''a explains:
Has חס is from the word HHessed חסד - free loving kindness -
which is broken up into חס ד =
חס דלת someone who pitties the dal - the daleth - the lacking one -
(-RZCsh)
that has nothing of its own = דלית DeLeiiTh - in "Aramaic".
Source of "delete" - deleted/lacking all their wealth & possessions.
& so we HHaS = pitty & give whatever is lacking
& firstly to directly ourselves ask The Infinite One for help in all /
& in doing so - being like The Infinite One sustaining the lacking. (-RZCsh)
These are powerful words & wishes contained within one or two words.