Where does “headgroup” come from?

headgroup (English) comes from English Group, from French groupe, from Italian gruppo, from Vulgar Latin cruppo, from Renaissance Latin grupus, from Proto-Germanic kruppaz, from Proto-Indo-European grewb-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

headgroup (English): A bulky part of a molecule, often containing one...

Definitions

  1. A bulky part of a molecule, often containing one...

Ancestry of “headgroup”, step by step

headgroup traces back through two separate lines of ancestry.

via English Group

StepLanguageWordMeaning
1EnglishGroupA number of things or persons being in some relation to one another
2Frenchgroupegroup
3Italiangruppogroup, cluster, party, team, covey; pack; peloton
4Vulgar Latincruppo
5Renaissance Latingrupus
6Proto-Germanickruppaza body; mass; a compressed, round mass; lump;...
7Proto-Indo-Europeangrewb-to warp, bend, crawl; to bend, crouch, crawl; to...
8Proto-Indo-Europeanger-to turn, bend, twist, wind; to tie, bind...

via English head

StepLanguageWordMeaning
1EnglishheadThe part of the body of an animal or human which...
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
Every word from Proto-Indo-European ger-