From en.wiktionary.org:
** German
*** Etymology
From [de], from [de]. Equivalent to [de]. The modern sense of the verb (17th
c.) follows the semantic development of the noun. <u>Not</u> related with
[en].
*** Pronunciation
- [de]
- [de]
- [de]
*** Verb
[de-verb]
1. [de] to mate [de]
2. [de] to copulate
**** Usage notes
- Sometimes used of humans, but this is deliberately coarse or flippant.
**** Conjugation
[de-conj]
**** Derived terms
- [de]
*** Further reading
- [R:de:Duden]
- [R:de:DWDS]