köken: Univerbation of ἐφ' ὅσον (ef' óson), a learned borrowing from Koine Greek ἐφ' ὅσον (eph' hóson, “for as long as possible”), with semantic loan from English as long as and/or semantic loan from German solange, sofern.
Εφόσον έχουν καταβληθεί τα πρόστιμα, είναι ελεύθεροι να φύγουν.