(a.) Extortionate.

aggravation agitation animation aphrodisiac aphroditous arousal educible eductive electrification elicitory eradicative eroticizing evocative exacerbation exacting exactive exasperation excitation excitement exhilaration extortionary extortionate extortive extractive fomentation galvanization incitement inflammation infuriation irritation lathering up perturbation provocation steaming up stimulating stimulation stimulus stirring stirring up uprooting venereal whipping up working up