American Tract Society Bible Dictionary
Was general of the army of Elah king of Israel; but being at the siege of Gibbethon, and hearing that his master Elah was assassinated by Zimri who had usurped his kingdom, he raised the siege, and being elected king by his army, marched against Zimri, attacked him at Tirzah, and forced him to burn himself and all his family in the palace in which he had shut himself up. After his death, half of Israel acknowledged Omri for king, the other half adhered to Tibni, son of Ginath, which division continued four years. When Tebni was dead, the people united in Acknowledging Omri as king of all Israel, who reigned twelve years, six years at Tirzah, and six at Samaria, 1 Kings 16:8-28 .
Tirzah had previously been the chief residence of the kings of Israel; but when Omri purchased the hill of Shomeron, 1 Kings 16:24 , he built there a new city, which he called Samaria, from the name of the previous possessor, Shemer or Shomer, and here fixed his royal seat. From this time Samaria was the capital of the Kingdom of the ten tribes. It appears, under the name of Beth-Omri, on the stone tablets recently exhumed by Layard from the ruins of Nineveh.
These files are public domain and are a derivative of the topics are from American Tract Society Bible Dictionary published in 1859.
Rand, W. W. Entry for 'Omri'. American Tract Society Bible Dictionary. https://www.studylight.org/dictionaries/eng/ats/o/omri.html. 1859.