thy
determiner /ðaɪ/
/ðaɪ/
(old use)- a word meaning ‘your’, used when talking to only one person
- Honour thy father and thy mother.
/ðaɪn//ðaɪn/.Word OriginMiddle English thi (originally before words beginning with any consonant except h), reduced from thin, from Old English thīn, of Germanic origin.