Latin word incomprehensibilis comes from Latin comprehensibilis, Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.)

Detailed word origin of incomprehensibilis

Dictionary entry	Language	Definition
comprehensibilis	Latin (lat)	(of the senses) perceptible, evident. (to the mind) perceptible, conceivable, intelligible, graspable. That can be seized or laid hold of.
ingratus	Latin (lat)	Thankless. Ungrateful. Unpleasant, disagreeable.
incomprehensibilis	Latin (lat)	Incomprehensible.