talesman
noun
tales·man ˈtālz-mən 
ˈtā-lēz-
ˈtā-lēz- 1
: a person added to a jury usually from among bystanders to make up a deficiency in the available number of jurors
2
: a member of a large pool of persons called for jury duty from which jurors are selected
Word History
Etymology
Middle English tales talesmen, from Medieval Latin tales de circumstantibus such (persons) of the bystanders; from the wording of the writ summoning them
First Known Use
1679, in the meaning defined at sense 1
Legal Definition
talesman
noun
tales·man ˈtālz-mən, ˈtā-lēz-
plural talesmen
-mən
: a person summoned as one of the tales added to a jury