Where does “arthr-” come from?

arthr- (English) comes from Ancient Greek ἄρθρον, from Ancient Greek ἀραρίσκω, from Ancient Greek -σκω, from Proto-Indo-European -sḱéti — Forms durative or iterative imperfective verbs...

Ancestry of “arthr-”, step by step

StepLanguageWordMeaning
1Ancient Greekἄρθρονjoint; limb; articulation
2Ancient Greekἀραρίσκωjoin, fasten; fit together, construct; fit,...
3Ancient Greek-σκωPrimitive suffix used to form present-tense...
4Proto-Indo-European-sḱétiForms durative or iterative imperfective verbs...

Words derived from “arthr-”

Every word from Proto-Indo-European -sḱéti →Every word from Ancient Greek -σκω →Every word from Ancient Greek ἀραρίσκω →