The word for today is…

dispositive (adj) – (law) 1. Relating to or determining the outcome of a case or decision.
2. Relating to or involving the distribution of property, as through a trust or will.

Source : The Free Dictionary

Etymology : Late Middle English (in the sense ‘contributory, conducive’): from Old French, or from medieval Latin dispositivus, from Latin disposit- ‘arranged, disposed’, from the verb disponere.

Peter is a fourth-generation New Zealander, with his mother's and father's folks having arrived in New Zealand in the 1870s. He lives in Lower Hutt with his wife, some cats and assorted computers. His...