Where does “blitzweed” come from?

blitzweed (English) comes from English Blitz, from English Blitzkrieg, from German Blitzkrieg, from German krieg, from Middle High German kriec, from Old High German krig, from Proto-West Germanic krīg, from Proto-Germanic krīganą — Forms adjectives from Caland system roots.

Ancestry of “blitzweed”, step by step

blitzweed traces back through two separate lines of ancestry.

via English Blitz

StepLanguageWordMeaning
1EnglishBlitzThe series of air raids launched on various cities in the United Kingdom by the German air force in 1940–41 during World War II
2EnglishBlitzkriegA fast military offensive, typically involving a large and highly mobile tank force with air support
3GermanBlitzkriegblitzkrieg
4Germankriegsingular imperative of kriegen
5Middle High Germankriecexertion; enmity; opposition
6Old High Germankrigstubbornness; defiance
7Proto-West Germanickrīgstrife; struggle; fight
8Proto-Germanickrīganą
9Proto-Indo-Europeangʷrihg(ʰ)-o-
10Proto-Indo-Europeangʷréh₂usheavy
11Proto-Indo-European-usForms adjectives from Caland system roots

via English weed

StepLanguageWordMeaning
1EnglishweedAny plant regarded as unwanted at the place...
2Middle Englishweed
3Old Englishwēodweed
4Proto-West Germanic*weudweed (unwanted plant)
Every word from Proto-Indo-European -us
blitzweed — Etymology, Origin & Word History | Etymology Explorer