Words Containing IEN and Ending in O

Making a list of words with IEN that end in O? Sounds fun. Also sounds pretty specific. A list like that could go a long way, we're sure. This complete word list is tailored to your search parameters, whether they are words with IEN or words that end in O. Or both, obviously.

12 letter words1 Word
ayuntamiento
10 letter words1 Word
haciendado
8 letter words2 Words
assiento
pimiento
7 letter words1 Word
ripieno
6 letter words1 Word
tiento