-ισμός
-ismós
“practice, habit”
6 words in English grow from this root.
Anthropomorphism
Philosophyἄνθρωποςánthrōpos
“the practice of human-shaping”
Archaism
Wordsἀρχαῖοςarkhaîos
“the practice of the old”
Autism
Mindαὐτόςautós
“state of the self”
Barbarism
Wordsβάρβαροςbárbaros
“speaking like a foreigner”
Ostracism
Politicsὄστρακονóstrakon
“the potsherd procedure”
Solecism
WordsΣόλοιSóloi
“talking like a man of Soloi”