13-Letter Words Matching _____EO______

There are 17 13-letter words that match _____EO______. 8 are common words, such as ARCHAEOLOGIES and ARCHAEOLOGIST. A rarer one is TRACHEOPHYTES. In this set, S is the most frequent open letter (16 words). 7 words contain a doubled letter.

Full list 17

archaeologiesarchaeologistbounteousnesscourteousnessluncheonettesphraseologiesrighteousnesstracheotomiesapotheosizingarchaeopteryxastereognosisbeauteousnesserroneousnessphraseologistpancreozyminsplenteousnesstracheophytes

About this list

Words
17 (8 common words)
Common example
archaeologies
Rare example
tracheophytes
Doubled letters
7
Ending in S
13
Most frequent letter
S (16)

Questions

How many 13-letter words matching _____eo______ are there?

17. 8 of them are common words.

What is a common example?

ARCHAEOLOGIES is among the common words in this set.