The word EARTH is a rich source of wordplay. How many words can you come up with by adding, dropping, or swapping just one letter. Anagrams are allowed. Use the hints below if you choose. There are at least 18.

HINTS:
1. Add a Y.
2. Anagram the whole word.
3. Anagram the whole word.
4. Replace the E with a D
5. Replace the E with an H.
6. Drop the E and anagram.
7. Drop the T and anagram.
8. Drop the TH.
9. Drop the E and H.
10. Drop the ART.
11. Add a D and anagram.
12. Add a T and anagram.
13. Swap the R for a D and anagram.
14. Swap the A for an E and anagram.
15. Add a W and anagram.
16. Add a G and anagram.
17. Add an R and anagram.
18. Add a Y and anagram.


(Possible) Answers:

1. EARTHY
2. HEART
3. HATER
4. DEARTH
5. HEARTH 
6. HART
7. HEAR/HARE
8. EAR
9. ART
10. EH
11. THREAD
12. THREAT 
13. DEATH
14. THREE
15. WREATH
16. GATHER
17. RATHER 
18. HEARTY 

Credit:
Joseph Appel