originator
n. B2 Upper Intermediate US //ɝˈɪdʒəˌneɪtɝ// UK //əɹˈɪdʒɪnˌeɪtɐ// orig·i·na·tor
n. the person who first created or started something. You use this to describe the original inventor or the person who started a new idea.
n. the person who first creates or initiates something. Often used to distinguish the original creator from later imitators or followers.
The originator of the idea deserves the credit.
The originator of the new software was surprised by how quickly it became a global success.
While many companies have since adopted the technology, the originator of the patent remains the sole legal owner of the original design.
From originate + -or.