idiograph
Etymology
From idio- + -graph.
idiograph means A mark or signature peculiar to an individual. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why this word is great
IDIOGRAPH — [Noun] A mark or signature peculiar to an individual. From Greek idiógraphos ("self-written"), from idio- ("one's own, peculiar") + -graph ("writing, drawing"). Unlike "autograph" (a handwritten signature prized as a relic) or "monogram" (a stylized knot of initials), an idiograph is any indelible trace of presence: the jagged scar left by a childhood fall, the oil-smudge left by a watchmaker's thumb on a repaired gear, or the way a pen hesitates at the downstroke of a "y." These are the silent signatures of being—unintended, unrepeatable, proof that existence leaves its own cursive on the world.
noun
- A mark or signature peculiar to an individual.