German translation: Festkredit / Festdarlehen (CH auch: Fester Vorschuss)
Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
Vielen Dank! Der gesuchte Begriff lag ursprünglich in Niederländisch vor. Dort fand ich auch die für Deutschland passendste Lösung: Festkredit / Festdarlehen 2 KudoZ points were awarded for this answer