starfað
Starfað is the past participle of the Icelandic verb starfa, which means to work or to be employed. As a participle, starfað is used in perfect tenses with the auxiliary hafa, and it can describe actions completed in the past or within a time frame up to the present. For example, Ég hef starfað í þessu fyrirtæki síðan 2010 means I have worked in this company since 2010, and Hún hefur starfað sem kennari í mörg ár means She has worked as a teacher for many years.
In ordinary narrative, the simple past of starfa is starfaði, not starfað. The form starfað appears specifically
Etymologically, starfað derives from the Icelandic verb starfa, which has long been used to denote working
See also: starfa (to work), starfsmenn (employees), starfsframi (productive activity).