The present paper discusses the origin of the Hungarian particle igen 'yes', for which no convincing etymology has been presented so far. It is suggested that it is a selective copy of Turkic egen ~ igen (< erken), an indirective and/or emphatic rhetorical particle ('evidently', 'obviously', 'apparently', 'as it appears', 'it turns out that', 'indeed'), derived from er- 'to be' and used as part of the predicate core and/or as a postpredicate element to convey consenting or admitting answers.