"Safavi" is an adjective, created for the name "Safi". Translated to English, "Safavi" would correspond roughly to "Safi-ish" or "Safidian"
"Safavi" is the correct Persian Language reference to "Safi", the name of Sheikh Safi Al-Din Ardebili. Similarly we speak of "Edwardian", when making a reference to the era affiliated with king Edward. Sheikh Safi's descendants have been going by this name for 770 years. There are numerous bearers of the name "Safavi" thriving in modern Day Iran, who claim descent from Sheikh Safi or any of his Royal Heirs.
The term "Safavid", as in Safavid Dynasty (of which Sheikh Safi is the Eponym), is likewise referred to as "Safavi" by Persian speakers. The "d" at the end of SAFAVID has been added by western scholars to facilitate easier pronunciation, as has long been customary in so many other circumstances (Try saying "Safavi Dynasty" in English! This may explain why the "d" was added).
It is therefore correct and legitimate to keep to the well established spelling " Safavid/Safavids" for the English-, German- as well as French-speaking among us.
When added to a Shah's Name however, the spelling will allways be "Safavi", without the "d" at the end. E. g.: Shah Ismail ISafavi.
Safavi, the individual who published the fake news item, had acquired a short position in SINA stock days earlier, so that he would profit if the price declined.
Safavi directly or indirectly, singly or in concert, has made use of the means or instrumentalities of transportation or communication in, or the instrumentalities of, interstate commerce, or of the mails, in connection with the transactions, acts, practices, and courses of business alleged in this complaint.
Moments after posting the false message, Safavi made several attempts to post corrective statements, but failed because he was unable to regain access to the screen name that he had used to post the false message.
There are numerous bearers of the name "Safavi" thriving in modern day Iran, who claim descent from Sheikh Safi or any of his royal heirs.
The term "Safavid", as in Safavid Dynasty (of which Sheikh Safi is the Eponym), is likewise referred to as "Safavi" by Persian speakers.
The "d" at the end of "Safavid" was added by the principle of analogy with the Greek-derived names of several ancient dynasties, such as the Achaemenid dynasty and the Sassanid dynasty, based on the oblique cases of the Greek names.