When Arabic because the language of Islam, english didn't even exist in current form
Besides, the "gay" part is just an example, but point being, all languages develop differently, you and I don't know if the word "don't" suddenly comes to mean "park" 200 years later
Great example: "Razakar". Urdu for volunteer yet Bengali for "traitor"....
And I don't get that "evolve part"...what do you mean God doesn't want people to evolve...?
I like your way of thinking; that's how it should be. You don't find verses in the Quran saying force people to wear so and so; it's merely a guideline for "believing women" to cover their head and dress modestly.