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thy

American  
[thahy] / ðaɪ /

pronoun

  1. the possessive case of thou (used as an attributive adjective before a noun beginning with a consonant sound).

    thy table.
thy British  
/ ðaɪ /

determiner

  1. archaic (usually preceding a consonant) belonging to or associated in some way with you (thou) Compare thine

    thy goodness and mercy
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of thy

1125–75; Middle English; variant of thine

Compare meaning

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.