This template is used to request a source for doubtful etymologies in ===Etymology=== sections. It takes a single named parameter:
- lang=: the language in the form of a language code
Optionally, you can start a new discussion on Etymology Scriptorium, using the (+).
The template also places the entry into a hidden request category so that interested editors can look up etymologies that need sources. For an English language code as shown above, that would be Category:English entries needing reference.