Why this word is great
GRAVAMEN — [Noun] The essence or primary grounds of a complaint or grievance. From Late Latin gravāmen ("physical inconvenience, burden"), derived from Latin gravāre ("to burden, weigh down"), from gravis ("heavy, serious"), ultimately from Proto-Indo-European *gʷreh₂- ("heavy"). Unlike "grievance" (a diffuse cloud of discontent) or "lien" (a cold claim on collateral), gravamen is the singular weight at the heart of the matter. It is the unpaid invoice slipped beneath a door, the unspoken accusation in a lover’s silence, or the single cracked step in a staircase that makes the whole structure groan—the irreducible burden that, once named, cannot be unshouldered.