Where does “islamic” come from?

islamic (English) comes from English Islam, from Arabic إِسْلَام, from Arabic أَسْلَمَ, from Arabic ل, from Proto-Semitic *lV- — for, to.

islamic (English): Of, pertaining to, originating in, characteristic of, or deriving from Muslims or Islam

Definitions

Of, pertaining to, originating in, characteristic of, or deriving from Muslims or Islam

islamic traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	English	Islam	A monotheistic Abrahamic religion followed by Muslims that is based on the teachings of Muhammad and the Qur'an
2	Arabic	إِسْلَام	submission; religious submission to God, Islam;...
3	Arabic	أَسْلَمَ	to surrender, to become a Muslim; he submitted
4	Arabic	ل	to, for, belonging to; لَـ •; Used to express...
5	Proto-Semitic	*lV-	for, to

Step	Language	Word	Meaning
1	French	islamique	Islamic