Where does “ultracryotome” come from?

ultracryotome (English) comes from English cryotome, from English Tomé, from Middle French tome, from Latin tomus, from Ancient Greek τόμος, from Ancient Greek -ός, from Proto-Hellenic *-os, from Proto-Indo-European -ós — Creates agent nouns from verb stems, denoting...

ultracryotome (English): An ultramicrotome designed to work at low temperatures

Definitions

  1. An ultramicrotome designed to work at low temperatures

Ancestry of “ultracryotome”, step by step

ultracryotome traces back through two separate lines of ancestry.

via English cryotome

StepLanguageWordMeaning
1EnglishcryotomeA form of microtome that operates on frozen...
2EnglishToméOne in a series of volumes
3Middle Frenchtome
4Latintomusa section of a larger work; a volume
5Ancient Greekτόμοςslice, piece; piece of land; frustum
6Ancient Greek-όςForms agentive or patientive adjectives and nouns from the o-grade of a verbal root
7Proto-Hellenic*-os
8Proto-Indo-European-ósCreates agent nouns from verb stems, denoting...

via English ultra

StepLanguageWordMeaning
1EnglishultraExtreme; far beyond the norm; fanatical;...
2Latinultrābeyond
3Latin-asuffixed to the roots of verbs, forms agent...
4Proto-ItalicForms masculine agent nouns from prefixed or compounded bases
5Proto-Indo-European-éh₂
Every word from Proto-Indo-European -ósEvery word from Ancient Greek -όςEvery word from Ancient Greek τόμος