Early 19th century; earliest use found in The Quarterly Review. From classical Latin punctum + -atim. Compare post-classical Latin punctatim briefly, concisely, point by point, punctiliously.
Definition of punctatim in US English:
punctatim
adverbpʌŋ(k)ˈteɪtɪm
= punctuatim.
Origin
Early 19th century; earliest use found in The Quarterly Review. From classical Latin punctum + -atim. Compare post-classical Latin punctatim briefly, concisely, point by point, punctiliously.