testar / tester / testor [ˈtɛstɜr]
testar (tester also for meaning 1.) – n. – 1. a canopy over a bed; 2. the name of the teston of Henry VIII, a small devalued coin
tester – n. – 1. a person who evaluates or examines something or someone; 2. a piece of armour for the head, a casque
testor – n. – 1. one who is called as a witness; 2. one who writes and signs a will