Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Iru
Usage: A man of the tribe of Judah living before Israel's Monarchy, only mentioned at 1Ch.4.15; son of: Caleb (H3612); brother of: Achsah (H5915), Elah (H0425J) and Naam (H5277) § Iru = "watch" son of Caleb and grandson of Jephunneh