10-Letter Words Matching _____TH___

There are 68 10-letter words that match _____TH___. 30 are common words, such as ARRHYTHMIA and ARRHYTHMIC. A rarer one is WALKATHONS. In this set, I is the most frequent open letter (47 words). 8 words contain a doubled letter.

Full list 68

Common words

arrhythmiaarrhythmicbetrothalsbetrothingblackthorneverythingforgathersforsythiasgodfathersgodmothersheartthrobheptathlon
arrhythmiaarrhythmicbetrothalsbetrothingblackthorneverythingforgathersforsythiasgodfathersgodmothersheartthrobheptathlonknighthoodleviathansparenthoodpentathlonpriesthoodpromethiumstealthierstealthilysunbatherssunbathingsympathiessympathizeunclothingunearthingunfaithfuluntruthfulunworthierunworthilyabsinthismapophthegmbismuthousdisenthraldysarthriaeurhythmicgroupthinkhomeothermhypanthiumknightheadmonanthoustriphthonguintathereunrhythmicwhitethornbeclothingbesoothingbetrothedscallithumpenswathinghypaethralimposthumeinearthinginswathingmetaethicsmyopathiesnepentheannonauthorspermethrinreclothingstenothermsuperthicksympathinssympathisetalkathonsunswathingunworthieswalkathons

About this list

Words
68 (30 common words)
Common example
arrhythmia
Rare example
walkathons
Doubled letters
8
Ending in S
18
Most frequent letter
I (47)

Questions

How many 10-letter words matching _____th___ are there?

68. 30 of them are common words.

What is a common example?

ARRHYTHMIA is among the common words in this set.