14-Letter Words Matching __I__________Y

There are 21 14-letter words that match __I__________Y. 5 are common words, such as ARITHMETICALLY and COINCIDENTALLY. A rarer one is TRICHOTOMOUSLY. In this set, L is the most frequent open letter (20 words). 14 words contain a doubled letter.

Full list 21

arithmeticallycoincidentallyscientificallyunintelligiblyvaingloriouslycliometricallyclitoridectomyoligarchicallyphilatelicallyphilologicallyquinquenniallyunimpressivelyuninterestedlyepigeneticallyepigraphicallyfaintheartedlyfrictionlesslygoitrogenicityidiopathicallyopinionativelytrichotomously

About this list

Words
21 (5 common words)
Common example
arithmetically
Rare example
trichotomously
Doubled letters
14
Ending in S
0
Most frequent letter
L (20)

Questions

How many 14-letter words matching __i__________y are there?

21. 5 of them are common words.

What is a common example?

ARITHMETICALLY is among the common words in this set.