Definition of "adjectitious"

An adjective, so called because adjectitious, or added to a substantive, denotes some quality or accident of the substantive to which it is joined […]

a 1799, John Parkhurst, A Hebrew and English lexicon without points, page 25

Circumstances by which the obligations and rights, as well principal and essential as adjectitious, established by the species of contract in question, are respectively made to cease.

1827, Jeremy Bentham, Rationale of Judicial Evidence: Specially Applied to English Practice: in Five Volumes‎, volume 2, page 484

Such matter is ordinarily either omitted or else inserted in the preamble; but it has here crept on to the end of a section, and appears as an adjectitious thought. It has no effect there which it would not have had if it had been inserted in a preamble or omitted altogether.

1870, A. C. Bradley, E. C. Benedict, “Insurance Company v. The Treasurer”, in United States Reports: Cases Adjudged in the Supreme Court, volume 78, page 207