[1] Some Egyptologists think the name reflects the Egyptian pr-ḥwt-ḥrt, a place mentioned in Papyrus Anastasis III.
[2] In fact, part of the mystery can be resolved by understanding the initial syllable ′Pi,′ which corresponds to the Egyptian word Pr or Pi, as House of such as in ′Pithom′ or ′Pi-Ramesses′.
The next literary fragment ′Ha′ (ḥwt) would indicate the ′temple′, representing an Egyptian convention beginning with the hieroglyphic pr-ḥwt, “estate of the temple”, while the fact that the name ends with the goddess determinative indicates that the final element, ḥrt, is theophoric.
[2]: 199 The Revised Version of the Bible at the first use of the name Pi-HaHiroth has a link to a footnote that says "Or, where the desert tracks begin".
[4] Strong's Concordance simply locates Pi-HaHiroth as 'a place on the eastern border of Egypt'.