Apparently an orthographical variation for 'ayeh; where -- I will be (Hos. 13:10, Hos. 13:14) (which is often the rendering of the same Hebrew form from hayah).
Hosea 13:10 BIB: אֱהִ֤י מַלְכְּךָ֙ אֵפ֔וֹא NAS:Where now is your king KJV:I will be thy king: where INT:Where is your king now
Hosea 13:14 BIB:מִמָּ֖וֶת אֶגְאָלֵ֑ם אֱהִ֨י דְבָרֶיךָ֜ מָ֗וֶת NAS: O Death, where are your thorns? KJV: O death, I will be thy plagues; INT: death will redeem where plagues death
Hosea 13:14 BIB:דְבָרֶיךָ֜ מָ֗וֶת אֱהִ֤י קָֽטָבְךָ֙ שְׁא֔וֹל NAS: O Sheol, where is your sting? KJV: O grave, I will be thy destruction: INT: plagues death where destruction grave
