15-Letter Words Matching _______M______Y

There are 13 15-letter words that match _______M______Y. 4 are common words, such as DEVELOPMENTALLY and ENVIRONMENTALLY. A rarer one is POSTSTIMULATORY. In this set, A is the most frequent open letter (13 words). 8 words contain a doubled letter.

Full list 13

developmentallyenvironmentallyindeterminatelytemperamentallyfideicommissaryprogrammabilityuninformativelycircumambientlydithyrambicallyirreformabilitynonflammabilityplethysmographypoststimulatory

About this list

Words
13 (4 common words)
Common example
developmentally
Rare example
poststimulatory
Doubled letters
8
Ending in S
0
Most frequent letter
A (13)

Questions

How many 15-letter words matching _______m______y are there?

13. 4 of them are common words.

What is a common example?

DEVELOPMENTALLY is among the common words in this set.