Confirmation bias.
In the instance you cited, "pharaoh" is a (much) later translation. The Egyptians have left written records. Pr-aa morphed into "pharaoh" as a result of much later writers who spoke different languages.
Try to remember that there is not a shred of evidence that there ever were any masses of hebrew "slaves" in Egypt. Zero. Nada. Zilch. "Moses," "The Conquest," "The Ark of the Covenant," "The Exodus," etc., is all fiction.
It's a story made up much later. See Israel Finkestein "The Bible Unearthed" and Donald Redford "Egypt, Canaan, and Israel in Ancient Times" for more details. The crib notes version I could give you here will not do you much good.
In the instance you cited, "pharaoh" is a (much) later translation. The Egyptians have left written records. Pr-aa morphed into "pharaoh" as a result of much later writers who spoke different languages.
Try to remember that there is not a shred of evidence that there ever were any masses of hebrew "slaves" in Egypt. Zero. Nada. Zilch. "Moses," "The Conquest," "The Ark of the Covenant," "The Exodus," etc., is all fiction.
It's a story made up much later. See Israel Finkestein "The Bible Unearthed" and Donald Redford "Egypt, Canaan, and Israel in Ancient Times" for more details. The crib notes version I could give you here will not do you much good.