Where does “cryoanalgesia” come from?

cryoanalgesia (English) comes from English analgesia, from New Latin analgēsia, from Ancient Greek ἀναλγησίᾱ, from Ancient Greek ἀν-, from Ancient Greek ὀρθός, from Proto-Hellenic ortʰwós, from Proto-Indo-European h₃r̥dʰwós, from Proto-Indo-European h₃erdʰ- — Creates adjectives from verb stems.

Ancestry of “cryoanalgesia”, step by step

cryoanalgesia traces back through two separate lines of ancestry.

via English analgesia

StepLanguageWordMeaning
1EnglishanalgesiaThe inability to feel pain; Medication that acts...
2New Latinanalgēsia
3Ancient GreekἀναλγησίᾱWant of feeling, insensibility
4Ancient Greekἀν-Alternative form of ἀ- used before a vowel;...
5Ancient Greekὀρθόςstraight, upright, erect; straight forward, in a...
6Proto-Hellenicortʰwós
7Proto-Indo-Europeanh₃r̥dʰwós
8Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
9Proto-Indo-European-wósCreates adjectives from verb stems

via English cryo

StepLanguageWordMeaning
1Englishcryocryoprecipitate
Every word from Proto-Indo-European -wósEvery word from Proto-Indo-European h₃erdʰ-Every word from Ancient Greek ἀν-