Question: Targe (from Old Franconian *"targa " "shield", Proto-Germanic *"targo " "border") was a general word for shield in late Old English, its diminutive, "target", came to mean an object to be aimed at in the 18th century, Frankish,  Old Franconian or Old Frankish was the West Germanic language spoken by the Franks between which type span?
Sentence (from "Frankish language"): in present-day Belgium, in the present Netherlands and Western parts of today's Germany until about the 12th century when it evolved into Middle Dutch.
Relevant evidence: No