From the active participle of yashab and shebeth, with a preposition and the article interposed; sitting in the seat; Josheb-bash-Shebeth, an Israelite -- that sat in the seat.
KJV: These be the names of the mighty men whom David had: The Tachmonite that sat in the seat, chief among the captains; the same was Adino the Eznite: he lift up his spear against eight hundred, whom he slew at one time.
NASB: These are the names of the mighty men whom David had: Josheb-basshebeth a Tahchemonite, chief of the captains, he was called Adino the Eznite, because of eight hundred slain by him at one time;