What makes you think that the KJV doesn't say what the sect that created it wanted it to say?
The KJV has replaced the terms Sheol/Hades/Gehenna/Tartarus all with one term, hell, even though their meanings are something different...
Sheol and Hades referred to the pit or grave in the Bible...
Sheol
A Hebrew word corresponding to the Greek word “Hades.” It is translated “Grave” (capitalized), to distinguish it as the common grave of mankind rather than an individual grave.—
Ge 37:35, ftn.;
Ps 16:10, ftn.;
Ac 2:31.
https://wol.jw.org/en/wol/s/r1/lp-e?q=Sheol&p=par&r=occ&st=a
Hades
A Greek word corresponding to the Hebrew word “Sheol.” It is translated “Grave” (capitalized), to distinguish it as the common grave of mankind.—See
GRAVE.
https://wol.jw.org/en/wol/s/r1/lp-e?q=Hades&p=par&r=occ&st=a
Grave
When lowercased, referring to an individual grave; when capitalized, the common grave of mankind, equivalent to the Hebrew “Sheol” and the Greek “Hades.” It is described in the Bible as a symbolic place or condition wherein all activity and consciousness cease.—
Ge 47:30; Ec 9:10; Ac 2:31.
Gehenna was the Greek term for the Valley of Hinnom, south and southwest of ancient Jerusalem...a place where dead bodies and garbage were thrown to burn up...
This name appears 12 times in the Christian Greek Scriptures, and whereas many translators take the liberty to render it by the word “hell,” a number of modern translations transliterate the word from the Greek
geʹen·na.—
Mt 5:22,
Ro, Mo, ED, NW, BC (Spanish),
NC (Spanish), also the footnotes of
Da and
RS.
Gehenna was used by Jesus and his disciples to symbolize the eternal punishment of “second death,” that is, everlasting destruction, annihilation.—
Re 20:14; Mt 5:22; 10:28.
https://wol.jw.org/en/wol/s/r1/lp-e?q=Gehenna&p=par&r=occ&st=a
Tartarus
In the Christian Greek Scriptures, a prisonlike abased condition into which the disobedient angels of Noah’s day were cast. At
2 Peter 2:4, the use of the verb
tar·ta·roʹo (to “cast into Tartarus”) does not signify that “the angels who sinned” were cast into the pagan mythological Tartarus (that is, an underground prison and place of darkness for the lesser gods). Rather, it indicates that they were abased by God from their heavenly place and privileges and were delivered over to a condition of deepest mental darkness respecting God’s bright purposes. Darkness also marks their own eventuality, which the Scriptures show is everlasting destruction along with their ruler, Satan the Devil. Therefore, Tartarus denotes the lowest condition of abasement for those rebellious angels. It is not the same as “the abyss” spoken of at
Revelation 20:1-3.
https://wol.jw.org/en/wol/s/r1/lp-e?q=Tartarus&p=par&r=occ&st=a
