14-Letter Words Matching ____ER________

There are 104 14-letter words that match ____ER________. 38 are common words, such as BACTERIOLOGIES and BACTERIOLOGIST. A rarer one is WINTERIZATIONS. In this set, I is the most frequent open letter (86 words). 43 words contain a doubled letter.

Full list 104

Common words

bacteriologiesbacteriologistbutterfingeredbutterscotchescauterizationscommercialismscommercializedcommercializesconcertmastersconservativelyconservatoriesconterminously
bacteriologiesbacteriologistbutterfingeredbutterscotchescauterizationscommercialismscommercializedcommercializesconcertmastersconservativelyconservatoriesconterminouslyconversationalconvertibilitycumbersomenessdaguerreotypeddaguerreotypesdifferentiateddifferentiatesfingerprintingfraternizationhysterectomieskindergartenerkindergartnersmotherlinessesmysteriousnessnonperformanceperversenessespreferentiallypulverizationsrollerskatingsrutherfordiumssisterlinessessubversivenesstatterdemalionuniversalitiesuniversalizingwesternizationautoeroticismsbacteriophagesbacteriostasesbacteriostasisberberidaceousconcertmeisterconservationalconservatoiresconservatorialdifferentiabledifferentiallydifferentiatordiscernibilitydissertationalfatherlessnessfatherlinessesfingerbreadthshomoeroticismshysterectomizeoystercatchersposterioritiesuniversalisticbactericidallybacteriostaticbacterizationscenterednessescommercialisedcommercialisescommercialistsconservatizingconversazionesconvertaplanesconvertiplanescooperationistdeuteragonistsdispersivenessdisserviceablefingerpickingsgingerlinessesglyceraldehydehalterbreakingisomerizationsletterspacingslubberlinessesmannerlinessesmasterlinessesmercerizationsmisperceptionsmotherlessnessnonderivativesnonperishablesnonterminatingposterolateralpreperformancepreservabilitypreterminationpretermissionssilversmithingsubservienciessubterraneanlysufferablenesssummersaultingtenderizationsvulnerablenesswesternisationwinterizations

About this list

Words
104 (38 common words)
Common example
bacteriologies
Rare example
winterizations
Doubled letters
43
Ending in S
60
Most frequent letter
I (86)

Questions

How many 14-letter words matching ____er________ are there?

104. 38 of them are common words.

What is a common example?

BACTERIOLOGIES is among the common words in this set.