sickening

Definitions
Examples

(verb): To make ill.
(verb): To become ill.
(verb): To fill with disgust or abhorrence.
(verb): To lower the standing of.
(verb): To be filled with disgust or abhorrence.
(verb): To become disgusting or tedious.
(verb): To become weak; to decay; to languish.
(noun): The act of making somebody sick.
(adjective): Causing sickness or disgust.
(adjective): Amazing, fantastic.

The infection will sicken him until amputation is needed.
I will sicken if I don’t get some more exercise.
His arrogant behaviour sickens me.