i Register
In some senses, supplicate is marked as archaic. Watch for register when choosing this word.
verb
To make a humble request to (someone, especially a person in authority); to beg, to beseech, to entreat.
"Your Petitioner, in all Submiſſiveneſs, moſt humbly ſupplicateth your Honourable Lordſhips, to be pleaſed to diſpenſe vvith your Petitioner's Attendance, until God ſhall better enable him." Ordered, That this Houſe doth diſpenſe vvith Mr. Baron [Edward] Henden’s Abſence,^([sic – meaning presence]) until his Health vvill permit him to come hither vvith Safety.
Peter nobly acknowledgeth error, ſuſpecteth an interfering Devil, and ſupplicateth his Reader— […]
To make a humble request to (someone, especially a person in authority); to beg, to beseech, to entreat.
In Nov. 1561 he [William Alley] ſupplicated the venerable congregation of Regents of the Univerſity that the Degree of Bach[elor] of Divinity might be conferr'd on him: vvhich being granted, he ſupplicated for that of Doctor; and that being granted alſo, he vvas admitted to them both ſucceſſively, vvithout any mention at all of Incorporation.
To make a humble request to (someone, especially a person in authority); to beg, to beseech, to entreat.
to supplicate the Deity
[T]hou maiſt freely lay open thy mind to him [Jesus] in prayer, vvhat ever diſtreſs or vvant thou art in come to him in prayer and thou needſt not fear he vvill vvell knovv vvhat it is thou ſupplicateſt him about; […]
To ask or request (something) humbly and sincerely, especially from a person in authority; to beg or entreat for.
to supplicate blessings on Christian efforts to spread the gospel
[A]nd vvhat art thou that ſupplicateſt my aſſiſtance?
To humbly request for something, especially to someone in a position of authority; to beg, to beseech, to entreat.
Thus alſo the Church of Svveueland ſupplicateth to the Emperour of Germanie, if ſo bee that in time, vvee may not haue opportunitie for a generall Councell, yet at the lest your Maiestie may appoint a prouinciall aſſembly, &c.
A man cannot ſometimes brooke to Supplicate or Beg: […] But all theſe Things, are Gracefull in a Frends Mouth, vvhich are bluſhing in a Mans Ovvne.