Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Ithra
Usage: A man living at the time of United Monarchy, first mentioned at 2Sa.17.25; married to Abigail (H0026H); father of: Amasa (H6021); also called Ithra at 2Sa.17.25; Another name of ye.ter (יֶ֫תֶר "Jether" H3500H) § Ithra = "abundance" father of Amasa, the commander of Absalom's army; also 'Jether'