Where does “swingletail” come from?

swingletail (English) comes from English swingle, from English -le, from Middle English -el, from Old French -el, from Latin -ellus, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos — Forms agent nouns from verbal roots.

swingletail (English): The thrasher, or fox shark

Definitions

  1. The thrasher, or fox shark

Ancestry of “swingletail”, step by step

swingletail traces back through two separate lines of ancestry.

via English swingle

StepLanguageWordMeaning
1EnglishswingleTo beat or flog, especially for extracting the...
2English-leA frequentative suffix of verbs, indicating...
3Middle English-el
4Old French-elSuffix that usually denotes a masculine noun
5Latin-ellusAlternative form of -ulus; "forming masculine...
6Latin-ulusUsed to form a diminutive of a noun, indicating...
7Proto-Italic-olos
8Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
9Proto-Indo-European-e-lós
10Proto-Indo-European-lósForms agent nouns from verbal roots

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 -lósEvery word from Latin -ulusEvery word from Latin -ellus