Definition of "thicke"

The ground is couered thicke with pokickeries (which is a wild Wall-nut very hard and thick of shell; but the meate (though little) is passing sweete,) with black Wall-nuts, and acorns bigger than Ours.

1733, Various, Great Epochs in American History, Vol. II‎

Looke thou no further, but affixe thine eye 50 On that bright shynie round still moving masse, The house of blessed God, which men call Skye, All sowd with glistring stars more thicke then grasse, Whereof each other doth in brightnesse passe, But those two most, which, ruling night and day, 55 As king and queene the heavens empire sway; And tell me then, what hast thou ever seene That to their beautie may compared bee?

1591, Edmund Spenser, The Poetical Works of Edmund Spenser, Volume 5‎

The Dogs rushed in with such a cry, that all the Forrest rang againe with the noyse, but behold there leaped out no Goat, nor Deere, nor gentle Hinde, but an horrible and dangerous wild Boare, hard and thicke skinned, bristeled terribly with thornes, foming at the mouth, grinding his teeth, and looking direfully with fiery eyes.

1566, William Adlington, The Golden Asse‎