14-Letter Words Matching O____________Y

There are 18 14-letter words that match O____________Y. 6 are common words, such as OBSTREPEROUSLY and OCCUPATIONALLY. A rarer one is OXYMORONICALLY. In this set, L is the most frequent open letter (17 words). 7 words contain a doubled letter.

Full list 18

obstreperouslyoccupationallyoptimisticallyostentatiouslyoverpoweringlyoverwhelminglyoligarchicallyophthalmoscopyorographicallyorthopedicallyotolaryngologyoverabundantlyopinionativelyorganismicallyosmoregulatoryovergenerosityovergenerouslyoxymoronically

About this list

Words
18 (6 common words)
Common example
obstreperously
Rare example
oxymoronically
Doubled letters
7
Ending in S
0
Most frequent letter
L (17)

Questions

How many 14-letter words matching o____________y are there?

18. 6 of them are common words.

What is a common example?

OBSTREPEROUSLY is among the common words in this set.