15-Letter Words Matching _ER____________

There are 59 15-letter words that match _ER____________. 12 are common words, such as AERODYNAMICALLY and CEREMONIOUSNESS. A rarer one is XERORADIOGRAPHY. In this set, I is the most frequent open letter (54 words). 31 words contain a doubled letter.

Full list 59

Common words

aerodynamicallyceremoniousnessferociousnessesmercilessnessesmeritoriousnessnervelessnessesperpendicularlypersonificationperspicaciouslypervasivenessesservomechanismsverisimilitudes
aerodynamicallyceremoniousnessferociousnessesmercilessnessesmeritoriousnessnervelessnessesperpendicularlypersonificationperspicaciouslypervasivenessesservomechanismsverisimilitudescerebrovasculardermatoglyphicsferromagnetismshereditarianismhermaphroditismhermeneuticallymercaptopurinesmerchantabilityperdurabilitiesperfectionisticperfunctorinessperipateticallyperistalticallypermissiblenesspersonalizationperspicuousnessserendipitouslyserviceablenessservomechanicaltergiversationsxerographicallyaerodynamicistsaerosolizationsderivatizationsferrimagnetismsferromanganesesgerminabilitieskeratinizationsmercenarinessesmercurialnessesmeroblasticallyperishabilitiespermanentnessespersnicketinesspervertednessesreregistrationsseroconversionsteratocarcinomaterritorialismsterritorialiststerritorializedterritorializesveraciousnessesverifiabilitiesveritablenessesversatilenessesxeroradiography

About this list

Words
59 (12 common words)
Common example
aerodynamically
Rare example
xeroradiography
Doubled letters
31
Ending in S
39
Most frequent letter
I (54)

Questions

How many 15-letter words matching _er____________ are there?

59. 12 of them are common words.

What is a common example?

AERODYNAMICALLY is among the common words in this set.