The outset is the very beginning of something. From the outset, at the outset, doubts were raised at the outset.
It appears almost only in those two fixed phrases, and from the outset is by far the commoner. It is formal, and its usefulness is in argument: saying something was clear from the outset means nobody can claim to have been surprised. It takes the and no other determiner — his outset is wrong. Compare beginning, which is the neutral everyday word, and inception, which is even more formal and belongs to organisations and projects.
1nounoutsetThe very beginning of something.
“It was obvious from the outset that it would not work.”
outset is a beginning.
Also accepted in games: start
Middle English
setten
English
set
English, today
outset
Built from
From out + set, replacing earlier outsetting. set comes from Middle English setten. From Middle English setten, from Old English settan, from Proto-West Germanic sattjan, from Proto-Germanic satjaną, from Proto-Indo-European sodéyeti, causative of sed- (“to sit”). Cognate with Dutch zetten, German setzen, Danish sætte, Norwegian Bokmål sette, Icelandic and Norwegian Nynorsk setja, Swedish sätta, Faroese seta.
Etymology from Wiktionary, CC BY-SA