per-signo, āre, v. a. (extremely rare; not in Cic. or Caes.).
I To note down , record : uni dona, Liv. 25, 7, 5.—
II To mark : notis corpus, Mel. 1, 19, 20; so Firm. Math. 3, 7, 12.
per-sīgnō —, —, āre, to register accurately, record: triumviri donis persignandis, L. ...
An Elementary Latin Dictionary