The Collaborative International Dictionary
Puncto
Puncto \Punc"to\, n. [See Punto.]
A nice point of form or ceremony.
--Bacon.A term applied to the point in fencing.
--Farrow.
Wiktionary
puncto
n. 1 (context obsolete English) A particular point of form or ceremony. 2 (context fencing English) The point of the sword in fencing.