(Cf. from Webster’s 1913:
“crab,” n.: [Bot.] A crab apple—so named from its
harsh taste. See “crab,” adj.
When roasted crabs hiss in the bowl,
Then nightly sings the staring owl. —Shak.
“crab,” adj.: Sour; rough; austere.
Cf. from etymonline:
Old English crabba, from a general Germanic root (compare Dutch krab, Old High German krebiz, German krabbe, Old Norse krabbi “crab”), related to Low German krabben, Dutch krabelen “to scratch, claw,” from PIE root *gerbh– “to scratch, carve” …. French crabe (13c.) is from Germanic, probably Old Norse.
The zodiac constellation name is attested in English from c. 1000; the Crab Nebula (1840), however, is in Taurus, the result of the supernova of 1054, and is so called for its shape.
“… [T]he Crab Nebula … is in Taurus.”
Cf. WokeCapital: “Another scenario is that we get a new religion that allows us to function in productive ways. Don’t ask me how we get from here to there” [emphasis added].)