11-Letter Words Matching ____HL_____

There are 17 11-letter words that match ____HL_____. 8 are common words, such as DEATHLESSLY and FAITHLESSLY. A rarer one is TRICHLORFON. 8 words contain a doubled letter.

Full list 17

deathlesslyfaithlesslyflashlightsmirthlesslypamphleteerpamphletingtorchlightsworthlesslyearthlinessfleshlinessperchlorateperchloridesubchloridetrichlorideearthlightsmatchlesslytrichlorfon

About this list

Words
17 (8 common words)
Common example
deathlessly
Rare example
trichlorfon
Doubled letters
8
Ending in S
5

Questions

How many 11-letter words matching ____hl_____ are there?

17. 8 of them are common words.

What is a common example?

DEATHLESSLY is among the common words in this set.