Where does “crayweed” come from?

crayweed (English) comes from English Cray, from Dutch kraai, from French craie, from Latin Crēta, from Latin -āceus, from Latin -āx, from Latin -ium, from Latin -ius — Creates adjectives from noun or verb stems.

crayweed (English): A species of brown algae, Phyllospora comosa, that forms extensive underwater forests, native to the coastal waters of eastern Australia

Definitions

  1. A species of brown algae, Phyllospora comosa, that forms extensive underwater forests, native to the coastal waters of eastern Australia

Ancestry of “crayweed”, step by step

crayweed traces back through two separate lines of ancestry.

via English Cray

StepLanguageWordMeaning
1EnglishCraywhich flows into the River Darent
2DutchkraaiA crow, "Corvus corone"; One of certain related...
3Frenchcraiechalk
4LatinCrētachalk
5Latin-āceusaceous; resembling, having the nature of, forming, belonging to
6Latin-āxish, -y
7Latin-iumSuffix used to form abstract nouns, sometimes...
8Latin-iusforming adjectives from nouns; nominative neuter...
9Proto-Italic-jōsForms comparative adjectives
10Proto-Indo-European-yósCreates adjectives from noun or verb stems

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 -yós
crayweed — Etymology, Origin & Word History | Etymology Explorer