Origin: Latin suffix -ate
Isothiocyanate has 2 different meanings across 1 category:
a family of compounds derived from horseradish and radishes and onions and mustards; source of the hotness of those plants and preparations
any salt or ester of the hypothetical isothiocyanic acid; or the -NCS radical or the NCS⁻¹ anion; isomeric with thiocyanate