The Collaborative International Dictionary of English v.0.48:

Ablegate \Ab"le*gate\, v. t. [L. ablegatus, p. p. of ablegare;
   ab + legare to send with a commission. See Legate.]
   To send abroad. [Obs.] --Bailey.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ablegate \Ab"le*gate\, n. (R. C. Ch.)
   A representative of the pope charged with important
   commissions in foreign countries, one of his duties being to
   bring to a newly named cardinal his insignia of office.
   [1913 Webster]