Where does “tapeworm” come from?

Tapeworm derives from English tape and Middle English wurm, from Old English wyrm, from Proto-Germanic tappô and wr̥mis, ultimately from Proto-Indo-European roots wer- and deh₂-.

tapeworm (English): Any parasitical worm of the class or infraclass...

Definitions

  1. Any parasitical worm of the class or infraclass...

Ancestry of “tapeworm”, step by step

tapeworm traces back through two separate lines of ancestry.

via English Worm

StepLanguageWordMeaning
1EnglishWormA generally tubular invertebrate of the annelid phylum; an earthworm
2Middle EnglishwormA worm or similar small wormlike animal that...
3Old Englishwyrmcreeping insect; maggot, grub, worm; snake,...
4Old Englishlēahmeadow; clearing with a pigsty; woodland,...
5Proto-West Germaniclauhclearing; meadow
6Proto-Germaniclauhazclearing; meadow
7Proto-Indo-Europeanlówkosclearing; open space, clearing; field, meadow
8Proto-Indo-Europeanlewḱ-lynx
9Proto-Indo-Europeanlewk-bright; to shine; to see

via English tape

StepLanguageWordMeaning
1EnglishtapeFlexible material in a roll with a sticky surface...
2Middle EnglishtapeAlternative form of tappe; band, ribbon, tape
3Old Englishtæppatap, spigot; band, ribbon, tape
4Frankishtappō
5Proto-Germanictappôplug; tap
6Proto-Indo-Europeandeh₂p-to sacrifice; to lose
7Proto-Indo-Europeandeh₂-to share, divide

Words derived from “tapeworm

Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewḱ-Every word from Proto-Indo-European lówkos