See also s.v. hˀy pron.
In the case of the absence of a diacritic in Syriac or CPA, this demonstrative can also be distinguished from the independent pronoun "she" when it is used as the object of a preposition.
In JLAtg found as a regular variant for the masculine form ההוא as a replication of the regular spelling practice in the Torah due to the basic inability to distinguish between waw and yodh in many Herodian era hands. It is hard for us to imagine that this could be a legitimate Aramaic usage.