11-Letter Words Matching O_N________

There are 14 11-letter words that match O_N________. 6 are common words, such as OBNOXIOUSLY and OMNIPOTENCE. A rarer one is ORNAMENTALS. In this set, I is the most frequent open letter (13 words). 0 words contain a doubled letter.

Full list 14

obnoxiouslyomnipotenceomnipresentomniscienceornamentingornithologyoenophilistomnifariousornithopodsornithopterobnubilatedobnubilatesomnipotentsornamentals

About this list

Words
14 (6 common words)
Common example
obnoxiously
Rare example
ornamentals
Doubled letters
0
Ending in S
5
Most frequent letter
I (13)

Questions

How many 11-letter words matching o_n________ are there?

14. 6 of them are common words.

What is a common example?

OBNOXIOUSLY is among the common words in this set.