PROMISSORILY
Etymology
Adverb
promissorily (not comparable)
In a promissory manner.
Source: Wiktionary
Prom"is*so*ri*ly, adv.
Definition: In a promissory manner. Sir T. Browne.
PROMISSORY
Prom"is*so*ry, a.
Definition: Containing a promise or binding declaration of something to be
done or forborne. Promissory note (Law), a written promise to pay to
some person named, and at a time specified therein, or on demand, or
at sight, a certain sum of money, absolutely and at all events; --
frequently called a note of hand. Kent. Byles. Story.
Source: Webster’s Unabridged Dictionary 1913 Edition