Perhaps from 'osher and 'el; God has arrived; Ithiel, the name of an Israelite, also of a symbolical person -- Ithiel.
see HEBREW 'osher
see HEBREW 'el
H384. Ithiel
אִרתִיאֵל אִיתַי, see אֵת with.
אִיתָמָר see אִי below I. אוה.
אֵתָן אֵיתָן, see יתן.
אִיתִיאֵל 1 Proverbs 30:1 (twice in verse) וְאֻכָֽל׃ לְאִיתִיאֵל לְאִיתִיאֵל הַגֶּבֶר נְאֻם, in MT. proper name, masculine (probably with me is God: see Ol§ 82 c) usually taken as name of a son or pupil of Agur; but most moderns read וֵָאכֶל׃ אֵל לָאִיתִי אֵל לָאִיתִי I have wearied myself (see לָאָה), O God, I have wearied myself, O God, and am consumed.
2 a Benjamite Nehemiah 11:7.