The Construction ἀπὸ κοινοῦ in the Germanic Languages

A discussion of ἀπὸ κοινοῦ is in the main a quite technical subject, but not necessarily one which is difficult to follow. If at first it should seem to be such, the reason lies perhaps more in the name than in fact. The term is probably not so commonly used as other syntactical terms such as ellipsis, asyndeton, and fusion; but as a feature of language it is deserving of equal recognition. And in some respects it is not technical at all; for probably every educated person manifests at one time or another some curiosity about a particular turn of word or phrase which he uses or hears, and if he sought to describe it he might on occasion find that it could be called ἀπὸ κοινοῦ. In general the term applies to that feature of language wherein it seems necessary to understand a word twice although it is expressed but once.