crux
/kɹʌks/ noun, proper noun
Forms cruxes cruces crocs
- noun The basic, central, or essential point or feature. “The crux of her argument was that the roadways needed repair before anything else could be accomplished.”
- noun The critical or transitional moment or issue, a turning point.
- noun A puzzle or difficulty.
- noun (climbing) The hardest point of a climb.
- noun (heraldry) A cross on a coat of arms.
- proper noun (astronomy) A distinctive winter constellation of the southern sky, shaped like a cross. It appears in the flags of several countries in Oceania.
Synonyms
core essence heart gist bowels sum brass tacks drift guts gravamen heart and soul heartstring heartstrings inwardness kernel marrow meat moral of the story nitty-gritty nub Southern Cross Crux Australis crux of the matter
Etymology
Borrowed from Latin crux (“cross, wooden frame for execution”), possibly from the Proto-Indo-European *(s)ker- (“to turn, to bend”). Doublet of cross and crouch (“cross”).
Learned borrowing from Latin crux (“a cross”).
Webster’s 1913
Etymology [L., cross, torture, trouble.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “crux”, CC BY-SA 4.0. Details