ultimo /ˈʌltɪməʊ/adjective 1adverb 1noun 1 adjective1 •(no longer used) On the last day (of a specified month). adverb1 •Of last month.I receivd your favour of the 18th Ultimo in due time & beg pardon for not having answerd it before. — 1771 noun1 •(no longer used, rare) = The ultimum; the final, ultimate point of a sequence.
