14-Letter Words Matching ____I________Y

There are 42 14-letter words that match ____I________Y. 12 are common words, such as CONFIDENTIALLY and INALIENABILITY. A rarer one is UNTHINKABILITY. In this set, L is the most frequent open letter (41 words). 13 words contain a doubled letter.

Full list 42

Common words

confidentiallyinalienabilitylongitudinallymultifariouslymultilaterallyparsimoniouslypertinaciouslypredictabilityprovidentiallysacrilegiouslysentimentalityserviceability
confidentiallyinalienabilitylongitudinallymultifariouslymultilaterallyparsimoniouslypertinaciouslypredictabilityprovidentiallysacrilegiouslysentimentalityserviceabilitycardiomyopathyconditionalityfalsifiabilityjustifiabilitymagniloquentlymatrilinealitypermissibilityprovisionalityrectilinearityterritorialitytragicomicallyconfirmabilitycurvilinearitydisciplinarilydisciplinaritydorsiventrallyfashionabilityfissionabilityjusticiabilitymachineabilitymultifrequencymultilinguallyopinionativelypestilentiallypresidentiallyrectifiabilityretrievabilitytintinnabularyunchivalrouslyunthinkability

About this list

Words
42 (12 common words)
Common example
confidentially
Rare example
unthinkability
Doubled letters
13
Ending in S
0
Most frequent letter
L (41)

Questions

How many 14-letter words matching ____i________y are there?

42. 12 of them are common words.

What is a common example?

CONFIDENTIALLY is among the common words in this set.