The Collaborative International Dictionary
Assessorial
Assessorial \As`ses*so"ri*al\, a. [Cf. F. assessorial, fr. L.
assessor.]
Of or pertaining to an assessor, or to a court of assessors.
--Coxe.
Wiktionary
assessorial
a. (context logistics, of a fee English) Pertaining to services other than basic delivery, such as fuel and equipment. n. An assessorial charge.