13-Letter Words Matching O_________L__

There are 13 13-letter words that match O_________L__. 1 are common words, such as OPERATIONALLY and OBSESSIONALLY. A rarer one is OVERWITHHOLDS. In this set, I is the most frequent open letter (11 words). 11 words contain a doubled letter.

Full list 13

operationallyobsessionallyoctosyllablesontogenicallyontologicallyorgiasticallyorthocephalicobstetricallyonomasticallyorthoepicallyoverbejeweledoverfulfilledoverwithholds

About this list

Words
13 (1 common words)
Common example
operationally
Rare example
overwithholds
Doubled letters
11
Ending in S
2
Most frequent letter
I (11)

Questions

How many 13-letter words matching o_________l__ are there?

13. 1 of them are common words.

What is a common example?

OPERATIONALLY is among the common words in this set.