Where does “fiducially” come from?
fiducially (English) comes from English fiducial, from Latin fiducialis, from Latin fīdūcia, from Latin fīdō, from Proto-Italic feiðō, from Proto-Indo-European bʰéydʰeti, from Proto-Indo-European bʰeydʰ- — to compel, force; to trust.
fiducially (English): With confidence
Ancestry of “fiducially”, step by step