Where does “pennycress” come from?

pennycress (English) comes from English penny, from English -y, from Middle English -y, from Old English -iġ, from Proto-West Germanic -g, from Proto-Germanic -gaz, from Proto-Indo-European -ḱos — -y, -ic.

pennycress (English): Any of several plants, of the genus "Thlaspi",...

Definitions

  1. Any of several plants, of the genus "Thlaspi",...

Ancestry of “pennycress”, step by step

pennycress traces back through two separate lines of ancestry.

via English penny

StepLanguageWordMeaning
1EnglishpennyIn the United Kingdom and Ireland, a copper coin...
2English-yAdded to nouns and adjectives to form adjectives...
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic

via English cress

StepLanguageWordMeaning
1EnglishcressA plant of various species, chiefly cruciferous....
2Middle Englishcroyscross
3Old Frenchcroiscross; crossroads
4Latincruxwooden frame on which criminals were crucified,...
5Proto-Italic*kruks
6Proto-Indo-Europeansḱer-to caw, crow
Every word from Proto-Indo-European -ḱosEvery word from English -yEvery word from Old English -iġ