Wordnet 3.0
ADJECTIVE (1)
1.
in or of the month preceding the present one;
- Example: "your letter received on the 29th ult"[syn: ultimo, ult]
The Collaborative International Dictionary of English v.0.48:
Ultimo \Ul"ti*mo\ [L. ultimo (mense) in the last month.]
In the month immediately preceding the present; as, on the
1st ultimo; -- usually abbreviated to ult. Cf. Proximo.
[1913 Webster]
WordNet (r) 3.0 (2006):
ultimo
adj 1: in or of the month preceding the present one; "your
letter received on the 29th ult" [syn: ultimo, ult]