Thesaurus / wherefores
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLE SENTENCES FROM THE WEB

Do write and let me know all your present whys and wherefores.
I'm getting too old now to try to find out the whys and the wherefores of the new things that turn up every day.
Man, the insatiable enquirer, hands down from age to age his questions about the whys and wherefores of origins.
THE MASON-BEESJ. HENRI FABRE
But I will see what can be done for me, as things here stand, before I venture to again pile "whys" upon "wherefores."
Women are not given to the solving of problems, so we won't go into the great "whys" or the "wherefores."
THE WOMAN BEAUTIFULHELEN FOLLETT STEVANS
Oh, you are looking for two many whys and wherefores; what does the cause of your pain matter to you?
It would na be easy to say, replied the Leddy, a the whys and wherefores that I hae for my suspection.
THE ENTAILJOHN GALT
Now and then, too, they are valuable for their guesses at the whys and wherefores of things.
IRISH PLAYS AND PLAYWRIGHTSCORNELIUS WEYGANDT
Exploring the whys and wherefores of that quote accident unquote is the other.
MURDER IN THE GUNROOMHENRY BEAM PIPER
People like you that are always inquirin' out the whys and wherefores of things commonly get into trouble.
TRUE TO HIS HOMEHEZEKIAH BUTTERWORTH