From en.wiktionary.org:
[Absinken]
** German
*** Etymology
From [de].
*** Pronunciation
- [de] - [de] , [de]
*** Verb
[ab.sinken < sank,gesunken,sänke.sein>]
1. to sink , slump or fall 2. to plummet
**** Conjugation
[ab.sinken < sank,gesunken,sänke.sein>]
**** Derived terms
- [de]
*** Further reading
- [R:de:Duden] - [R:de:DWDS]