There are 12 11-letter words that end with 'onally'.
dictionally | emotionally | hexagonally |
erosionally | factionally | fictionally |
octagonally | polygonally | polytonally |
sectionally | semitonally | torsionally |
Note: These 12 11-letter words that end with 'onally' are found from the USA & Canada version of the tournament Scrabble word list.