English word archeological comes from English -ical, English archeology ((chiefly, US).)

Detailed word origin of archeological

Dictionary entry	Language	Definition
-ical	English (eng)	Used to form adjectives from nouns with the meaning "of or pertaining to"; adjectival suffix appended to various words, often nouns, to make an adjective form. Often added to words of Latin origin, but used with other words also.
archeology	English (eng)	(chiefly, US).
archeological	English (eng)	(North America).

Words with the same origin as archeological