9-Letter Words Containing ERK

There are 14 9-letter words that contain ERK. 6 are common words, such as BERKELIUM and CLERKSHIP. A rarer one is SUBCLERKS. In this set, I is the most frequent open letter (9 words). 3 words contain a doubled letter.

Full list 14

berkeliumclerkshipjerkinessjerkwateroverkillsperkinessberserkerinterknitkilderkinberserklyclerkdomsclerklierreperkingsubclerks

About this list

Words
14 (6 common words)
Common example
berkelium
Rare example
subclerks
Doubled letters
3
Ending in S
5
Most frequent letter
I (9)

Questions

How many 9-letter words containing erk are there?

14. 6 of them are common words.

What is a common example?

BERKELIUM is among the common words in this set.