Aiath is the feminine form of Ai, the city mentioned by Isaiah in connection with Migron and Michmash.
Definition
Aiath is the feminine form of Ai. It is the place named by Isaiah in the description of the advancing Assyrian army, in connection with Migron and Michmash.
Biblical Usage
Aiath appears in Isaiah’s prophetic account of the Assyrian advance. The name is understood as another form of the city Ai.
Historical Background
The form is feminine and is connected with Ai, a town near Bethel and east of it. Its precise identification follows the identification of Ai itself.
Historical Bible Dictionaries
Smith's Bible Dictionary
(feminine of Ai), a place named by Isaiah, (Isaiah 10:28) in connection with Migron and Michmash probably the same as Ai.
International Standard Bible Encyclopedia (ISBE)
<p>a'-yath (`ayyath): Found in Isa 10:28; feminine form of the city AI (which see).</p>