The Collaborative International Dictionary
Signiorize
Signiorize \Sign"ior*ize\, v. t. [See Seigniorize.]
To exercise dominion over; to lord it over. [Obs.]
--Shelton.
Signiorize
Signiorize \Sign"ior*ize\ (s[=e]n"y[~e]r*[imac]z), v. i.
To exercise dominion; to seigniorize. [Obs.]
--Hewyt.
Wiktionary
signiorize
vb. 1 (context obsolete intransitive English) To exercise dominion. 2 (context obsolete transitive English) To exercise dominion over; to lord it over.