1. A pledge. [Obs. or Scot.]

2. A gift; esp., drink money. [Obs or Scot.]

PROPINE
Pro"pine, n. Etym: [Propyl + ethine.] (Chem.)

Defn: Same as Allylene.

PROPINQUITY Pro*pin"qui*ty, n. Etym: [L. propinquitas, from propinquus near, neighboring, from prope near.]

1. Nearness in place; neighborhood; proximity.

2. Nearness in time. Sir T. Browne.

3. Nearness of blood; kindred; affinity. Shak.

PROPINYL
Pro"pi*nyl, n. Etym: [Propine + -yl.] (Chem.)

Defn: A hydrocarbon radical regarded as an essential residue of propine and allied compounds.