11-Letter Words Matching _____Y_A___

There are 20 11-letter words that match _____Y_A___. 6 are common words, such as AERODYNAMIC and JOHNNYCAKES. A rarer one is SHANDYGAFFS. In this set, E is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 20

aerodynamicjohnnycakesprophylaxesprophylaxissmartypantsvolleyballsanaphylaxesanaphylaxislachrymatorpolicymakersalicylatesautolysatesautolyzatescoenzymatichemodynamicpyrolysatespyrolyzablepyrolyzatesshaggymanesshandygaffs

About this list

Words
20 (6 common words)
Common example
aerodynamic
Rare example
shandygaffs
Doubled letters
4
Ending in S
14
Most frequent letter
E (15)

Questions

How many 11-letter words matching _____y_a___ are there?

20. 6 of them are common words.

What is a common example?

AERODYNAMIC is among the common words in this set.