I want to know the answer to the following question:
When was the word 'samurahi' used?
All the background I'm provided with is that "By the Heian period, this word had developed into the verb saburahu (さぶらふ, "to serve, to attend"), from which a deverbal noun saburahi (さぶらひ, "servant, attendant") was later derived, and this noun then yielded samurahi (さむらひ) in the Edo period.". Is that enough to answer the question?
Answer: yes