Where does “ataxia-telangiectasia” come from?

ataxia-telangiectasia (English) comes from English ataxia, from Ancient Greek ἀταξία, from Ancient Greek ἄτακτος, from Ancient Greek ἀ-, from Proto-Hellenic hə-, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

ataxia-telangiectasia (English): A rare neurodegenerative inherited disease causing severe disability, characterized by poor coordination and telangiectasia to small dilated blood vessels

Definitions

  1. A rare neurodegenerative inherited disease causing severe disability, characterized by poor coordination and telangiectasia to small dilated blood vessels

Ancestry of “ataxia-telangiectasia”, step by step

ataxia-telangiectasia traces back through two separate lines of ancestry.

via English ataxia

StepLanguageWordMeaning
1EnglishataxiaLack of coordination while performing voluntary...
2Ancient GreekἀταξίαIndiscipline; Disorder, confusion; Irregularity
3Ancient GreekἄτακτοςNot in battle-order; Undisciplined, disorderly;...
4Ancient Greekἀ-The alpha privativum, used to make words that...
5Proto-Hellenichə-same; together
6Proto-Indo-Europeansm̥-one; with, together
7Proto-Indo-Europeansem-together, one

via English telangiectasia

StepLanguageWordMeaning
1EnglishtelangiectasiaA condition characterized by dilatation of the...
2Ancient GreekἔκτασιςA stretching out, extension; lengthening of a...
3Ancient Greekἐκτείνωto stretch out; to prolong, draw out; to lay...
4Ancient Greekτείνωto stretch, extend; to spread; to exert, push to...
5Proto-Hellenictéňňōto stretch
6Proto-Indo-Europeantén-ye-ti
7Proto-Indo-Europeanten-to stretch, to extend
Every word from Proto-Indo-European sem-Every word from Ancient Greek ἀ-Every word from Proto-Indo-European sm̥-