prə̇ˈsidēəl adjective
Etymology: Late Latin praesidialis of a garrison, from Latin praesidium defense, garrison, fortification (from praesid-, praeses guard, president, ruler, from praesidēre to guard, preside over) + -alis -al — more at preside
1. : of, having, or constituting a garrison
three presidial castles in this city — James Howell
2.
[influenced in meaning by Late Latin praesidalis of a provincial governor, from Latin praesid-, praeses guard, president, ruler + -alis -al]
a. : presidential 1
presidial power
presidial cabinet
b. : presidential 2
judgment holds in me a presidial seat — Charles Cotton
3.
[French présidial being a presidial court, from Middle French presidial, alteration (influenced by Late Latin praesidialis of a garrison) of presidal, from Late Latin praesidalis of a provincial governor]
: of or relating to a province : provincial
presidial seat of justice
— see presidial court