installment
noun
°The act of installing; installation.
"Take oaths from all kings and magistrates at their installment, to do impartial justice by law. Milton."
°(obsolete) The seat in which one is placed.
"The several chairs of order, look, you scour; . . . Each fair installment, coat, and several crest With loyal blazon, evermore be blest. Shakespeare."
synonyms: investiture, investment, installation, episode more» , part