Select the INCORRECTLY spelt word.

Abcission Abstruse Incision Abyssal

Abcission

The incorrectly spelt word is Abcission. The correct spelling is Abscission. Abcission is the natural detachment of parts of a plant, typically dead leaves and ripe fruits. Abstruse means difficult to understand. Incision is a surgical cut made in skin or flesh. Abyssal denotes the depth or bed of the ocean.