mastadons.
An auto make that starts with "N" would be "Nissan" An auto model that starts with "N" would be "Nova, or Neon"
Isuzu.
Amusement.
electricity
Idea!
Nissan
aggrandize
batter
Chamomlile tea is supposed to make you tired.
Make is a word that means to create and starts with "m".
Elfin is one word that starts with e, has five letters, and the fourth letter is an i. A way to help find more words might be to make five spaces as you would in a game of hangman, and fill in the letters you know such as i and e.