דיה Dayah
Every verse in which this word stands — 2 places, in canonical order, first appearance to last. These are the places the lexicon carries under this word's own entry, counting every form the text writes it in, which is the number on the list.
The dayah — in Devarim's list, and gathering each with her mate over Edom's ruin in Yeshayahu 34. Traditionally a kite; the Gemara discusses how she stands beside the ayah and the da'ah.
וְהָרָאָה וְאֶת־הָאַיָּה וְהַדַּיָּה לְמִינָֽהּ
and the glede, and the falcon, and the kite after its kinds;
שָׁמָּה קִנְּנָה קִפּוֹז וַתְּמַלֵּט וּבָקְעָה וְדָגְרָה בְצִלָּהּ אַךְ־שָׁם נִקְבְּצוּ דַיּוֹת אִשָּׁה רְעוּתָֽהּ
There shall the arrowsnake make her nest, and lay, And hatch, and brood under her shadow; Yea, there shall the kites be gathered, Every one with her mate.
Quick answers
What is the Hebrew word for dayah?
Dayah in Hebrew is דיה, with a gematria of 19 in the standard method.
How many times is the dayah mentioned in the Tanakh?
The word stands 2 times in the Tanakh, first at Deuteronomy 14:13.
A spelling is not a word. The corpus never writes דיה bare — every one of its places carries a particle or a suffix on the front or the back — so the spelling above is the word's own headword, and the verses listed here are the only door to it.