It seems to be a deverbal noun: from Gk διασυρω (diasuro) 'to tear to pieces; disparage; draw through' fr. δια (dia) 'through' συρω (suro) 'to drag, draw'. Also diasurtes 'detractor'. Cf. English detract which is related to the Latin verb traho 'to draw', intraho 'to draw along, abuse', attraho 'to draw or drag with force; attract', etc.


Ceci n'est pas un seing.