English word hexad comes from English -ad (A unit. Toward.), English hex- (Form of hexa- used before a vowel.)

Detailed word origin of hexad

Dictionary entry	Language	Definition
-ad	English (eng)	A unit. Toward.
hex-	English (eng)	Form of hexa- used before a vowel.
hexad	English (eng)	(chemistry) An element or radical with the combining power of six units, i.e. six atoms of hydrogen.. A group of six.

Words with the same origin as hexad