All 3 Uses of

wanton

in

A Midsummer Night's Dream

they have overborne their continents: The ox hath therefore stretch'd his yoke in vain, The ploughman lost his sweat; and the green corn Hath rotted ere his youth attain'd a beard: The fold stands empty in the drowned field, And crows are fatted with the murrion flock; The nine men's morris is fill'd up with mud; And the quaint mazes in the wanton green, For lack of tread, are undistinguishable: The human mortals want their winter here; No night is now with hymn or carol blest:— Therefore the moon, the governess of floods, Pale in her anger, washes all the air, That rheumatic diseases do abound: And thorough this distemperature we see The seasons alter: hoary-headed frosts Fall in the fres†
Scene 2.1

His mother was a vot'ress of my order: And, in the spiced Indian air, by night, Full often hath she gossip'd by my side; And sat with me on Neptune's yellow sands, Marking the embarked traders on the flood; When we have laugh'd to see the sails conceive, And grow big-bellied with the wanton wind; Which she, with pretty and with swimming gait Following,—her womb then rich with my young squire,— Would imitate; and sail upon the land, To fetch me trifles, and return again, As from a voyage, rich with merchandise.†
Scene 2.1

Definitions:

(1) (wanton)
of something considered bad: excessive, thoughtless indulgence -- such as waste, cruelty, violence, and (especially in the past) sexual promiscuity
(2) (meaning too rare to warrant focus)
In classic literature, wanton can also describe people who are playful or plants that are growing profusely.