arhat, chart, ratch, earth, rathe, heart, hater, garth, airth, tharm, torah, tahrs, trash, harts, thraw, wrath, rhyta.
Your query has returned 13 words, which include anagrams of tahr as well as other shorter words that can be made using the letters included in tahr.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.