Where does “tailshield” come from?

tailshield (English) comes from English shield, from Middle English scheld, from Old English sċield, from Proto-West Germanic skeldu, from Proto-Germanic skelduz, from Proto-Indo-European (s)keit-.

tailshield (English): The pygidium

Definitions

  1. The pygidium

Ancestry of “tailshield”, step by step

tailshield traces back through two separate lines of ancestry.

via English shield

StepLanguageWordMeaning
1EnglishshieldAnything that protects or defends; defense;...
2Middle EnglishscheldA shield; An object that resembles a shield; Any...
3Old Englishsċieldshield
4Proto-West Germanicskeldushield
5Proto-Germanicskelduzshield
6Proto-Indo-European(s)keit-

via English Tail

StepLanguageWordMeaning
1EnglishTailA Chinese constellation coinciding with the tail of Scorpius, one of the 28 lunar mansions and the tail of Azure Dragon
2Middle EnglishtaylA tail; The back side or reverse of a creature; A...
3Old Englishtæġltail
4Proto-Germanictagląhair; ponytail; hair of a tail; tail
5Proto-Indo-Europeandoḱ-hair of the tail
6Proto-Indo-Europeandeḱ-take; perceive
Every word from Proto-Indo-European (s)keit-Every word from Proto-Germanic skelduzEvery word from Proto-West Germanic skeldu