Where does “eutardigrade” come from?

eutardigrade (English) comes from English tardigrade, from Latin tardigradus, from Latin gradior, from Latin gradus, from Proto-Italic graðus, from Proto-Indo-European gʰradʰ-.

eutardigrade (English): Any tardigrade of the class Eutardigrada

Definitions

  1. Any tardigrade of the class Eutardigrada

Ancestry of “eutardigrade”, step by step

eutardigrade traces back through two separate lines of ancestry.

via English tardigrade

StepLanguageWordMeaning
1EnglishtardigradeSluggish; moving slowly; A member of the animal...
2Latintardigradusslowly stepping
3LatingradiorI step, walk; I advance, go
4Latingradusa step, pace; a stage, degree; a rank
5Proto-Italicgraðus—
6Proto-Indo-Europeangʰradʰ-—

via English eu

StepLanguageWordMeaning
1Englisheu—
2Ancient Greekεὖwell
3Ancient Greekἐΰςgood, brave, noble
4Proto-Hellenicehu-good
5Proto-Indo-Europeanh₁su-good
6Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast
Every word from Proto-Indo-European gʰradʰ- →Every word from Proto-Italic graðus →Every word from Latin gradus →