Can you supply the first two letters of the common five-letter words ending in the three letters shown below?

1. _ _ LTA
2. _ _ YSS
3. _ _ PTY
4. _ _ DTH
5. _ _ DAY
6. _ _ YBE
7. _ _ DEX
8. _ _ FTH
9. _ _ NDA
10. _ _ APH
11. _ _ ALP
12. _ _ ERA
13. _ _ NJO
14. _ _ EUE
15. _ _ XTY
16. _ _ PTH

Answers:

1. DELTA
2. ABYSS
3. EMPTY
4. WIDTH
5. TODAY
6. MAYBE
7. INDEX
8. FIFTH
9. PANDA
10. GRAPH
11. SCALP
12. OPERA
13. BANJO
14. QUEUE
15. SIXTY
16. DEPTH