The spelling of the word "hath tree" is used to convey the message of 'having a tree'. It is spelled as /hæθ tri:/, which is the International Phonetic Alphabet (IPA) transcription of the word. The phonetic representation /hæθ/ is pronounced as "hath," and it refers to the archaic version of the verb "have." The second half, /tri:/, represents the pronunciation of "tree." Overall, the spelling of "hath tree" may seem unconventional, but it serves as an interesting way to express the ownership of a tree.