7-Letter Words Matching ____S_A

There are 42 7-letter words that match ____S_A. 8 are common words, such as AMNESIA and APHASIA. A rarer one is TURISTA. In this set, I is the most frequent open letter (31 words). 4 words contain a doubled letter.

Full list 42

Common words

amnesiaaphasiabaristacanastacelestafuchsiaoversearickshaagnosiaalgesiaaplasiabanksia
amnesiaaphasiabaristacanastacelestafuchsiaoversearickshaagnosiaalgesiaaplasiabanksiabritskachiasmafreesiagangstagenistaindusiaingestamarascamelismaoquassapurushaquassiasilesiatamashawoodsiaabrosiaacrasiaanopsiaastasiaatresiababesiacamisiacelosiachrismaentasialocustapodestarikisharobustaturista

About this list

Words
42 (8 common words)
Common example
amnesia
Rare example
turista
Doubled letters
4
Ending in S
0
Most frequent letter
I (31)

Questions

How many 7-letter words matching ____s_a are there?

42. 8 of them are common words.

What is a common example?

AMNESIA is among the common words in this set.