5 letters

• later,
• alert,
• ratel,
• alter.

4 letters

• lear,
• tael,
• rate,
• tela,
• late,
• rale,
• earl,
• tare,
• tear,
• tale,
• teal,
• tera,
• real.

3 letters

• art,
• ale,
• tar,
• ert,
• eat,
• lea,
• ela,
• ler,
• rat,
• are,
• alt,
• ear,
• era,
• let,
• tea,
• ret,
• ter,
• lat,
• tel,
• eta,
• ate.