"like a maze, winding, intricate," 1570s, from maze (n.) + -y (2).
Entries linking to mazy
maze n.
c. 1300, "delusion, bewilderment, confusion of thought," possibly from Old English *mæs, which is suggested by the compound amasod "amazed" and verb amasian "to confound, confuse" (compare amaze). Of uncertain origin; perhaps related to Norwegian dialectal mas "exhausting labor," Swedish masa "to be slow or sluggish."
Meaning "labyrinth, baffling network of paths or passages" is recorded from late 14c. (on the notion of something intended to confuse or mislead"). Also as a verb in Middle English, "to stupefy, daze" (early 14c.).
-y 2
adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy). Adjectives such as hugy, vasty are artificial words that exist for the sake of poetical metrics.