Bible dictionaries
Iru
What Bible dictionaries say about “Iru”, one article after the other.
International Standard Bible Encyclopedia (ISBE 1915)
i'-roo (`iru): Eldest son of Caleb (1Ch 4:15); probably to be read Ir, the syllable "-u" being the conjunction "and" belonging to the following word.
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith