“Seth” From Boyd’s Bible Dictionary:
(pay). Third son of Adam (Gen. 4:25; 5:3-8).
“Sheth” From Boyd’s Bible Dictionary:
(tumult). (1) (1 Chron. 1:1). [SETH.] (2) For Sheth (Num. 24:17), read “tumult,” as in Jeremiah 48:45.
“Seth” From Concise Bible Dictionary:
Son of Adam and Eve, born after the death of Abel, and father of Enos. His name signifies “appointed”; God thus continued the line of Abel, whom Cain slew, through the appointment of Seth. Hence, in Genesis 4:25-26 it is said in connection with Seth, “Then began men to call upon the name of the Lord.” This is immediately followed by “This is the book of the generations of Adam,” giving the lineage through Seth and his descendants, and making no mention of Cain and his descendants. From Seth the genealogy is traced to Noah, and the flood swept away all else (Gen. 5:3-8; Luke 3:38). He is called SHETH in 1 Chronicles 1:1.
“Sheth” From Concise Bible Dictionary:
Son of Adam (1 Chron. 1:1). See SETH. The word occurs also in Numbers 24:17, where, instead of “children of Sheth,” it is better to read “sons of tumult;” that is, “tumultuous war will be destroyed” (compare Jer. 48:45).
Strong’s Dictionary of Hebrew Words:
Meaning:
from 7896; put, i.e. substituted; Sheth, third son of Adam
Jackson’s Dictionary of Scripture Proper Names:
appointed: set : tumult (Num. 24:17)
Potts’ Bible Proper Names:
Replacing; substituted; tumult:―son of Adam [SETH], Num. 24:17. {Substitio}