English word -ize comes from Middle English -isen.

-ize etymology ^?

-ize detailed word origin explanation

Dictionary entry	Language	Definition
-isen	Middle English (enm)
-ize	English (eng)	Used to form verbs from nouns or adjectives, the verbs having the sense of "to make what is denoted by the noun/adjective".

Words with the same origin as -ize