Where does “diagnostic” come from?

diagnostic (Romanian) comes from French diagnostic, from French diagnostique, from Ancient Greek διαγνωστικός, from Ancient Greek διάγνωσις, from Ancient Greek διαγιγνώσκω, from Ancient Greek δῐᾰ-, from Ancient Greek διά, from Proto-Indo-European dwís — two.

diagnostic (Romanian): diagnosis

Definitions

  1. diagnosis

Ancestry of “diagnostic”, step by step

StepLanguageWordMeaning
1Frenchdiagnosticdiagnosis
2Frenchdiagnostiquediagnostical, diagnostic
3Ancient Greekδιαγνωστικόςable to distinguish
4Ancient Greekδιάγνωσιςdistinguishing
5Ancient Greekδιαγιγνώσκωto discern; distinguish, discern
6Ancient Greekδῐᾰ-apart; through, across; through; in different...
7Ancient Greekδιάthroughout
8Proto-Indo-Europeandwístwice, doubly; in two
9Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dwóh₁Every word from Ancient Greek δῐᾰ-Every word from Proto-Indo-European dwís