What do the following words have in common?
ant, past, sing, teeth, amoeba, escape, therefor
Each of the above words are trnasformed into a new word when the letter "e" is appended to each.
So,
ant + e = ante
past+ e = paste
sing+ e = singe
teeth+e = teethe
amoeba+ e = amoebae
escape + e = escapee
therefor + e = therefore