(archaic, dialectal, literary) Possessive form of thou: that which belongs to thee; which belongs to you (singular).

(obsolete) Only used in for thy, for-thy, which is an alternative form of forthy (“because, therefore”)

Honorific alternative letter-case form of thy, sometimes used when referring to God or another important figure who is understood from context.

Alternative form of forthy (“because”)

(derogatory, economics, trade) An economic policy that favors domestic interests at greater total cost to the economies of trading partners.

Alternative spelling of beggar-thy-neighbor

(pseudo-archaic, nonstandard) Yourselves: a plural of the normally archaic pronoun thyself.

Any of various insects, including the silverfish and firebrats, of the order Thysanura (now Zygentoma), which have three long caudal filaments.

(zoology) Of or pertaining to the Thysanura (now Zygentoma), an order of insects with three long caudal filaments.

(zoology) One of the Thysanoptera.