fornicatim
From LSJ
Ἡ δὲ Σελήνη γενομένη μὲν ἐκ τῆς ἀντανακλάσεως τοῦ ἡλιακοῦ φωτὸς → the moon having been made from the reflection of sunlight (Vettius Valens, Anthologies 1.14)
Latin > English (Lewis & Short)
fornĭcātim: adv. fornicatus,
I in the form of an arch, archwise, Plin. 16, 42, 81, § 223.
Latin > French (Gaffiot 2016)
fornĭcātim (fornico), en forme de voûte : Plin. 16, 223.
Latin > German (Georges)
fornicātim, Adv. (*fornico), schwibbogenartig, Plin. 16, 223.
Latin > English
fornicatim ADV :: archwise, in an arched manner; in the form of an arch (L+S)