家
1
suffix
-ista;-dor;-ico (que se dedica a~)
1
suffix
-ist;-er
used after a noun indicating someone's occupation, pursuits, disposition, etc.
See also:
政治家 (せいじか)
だが実際は、すべての大発見家は夢想家とみなされてきた。
As a matter of fact, all great discoverers have been regarded as dreamers.