instalment

UK: ɪnˈstɔːlmənt | US: ɪnˈstɔːlmənt

Definition
  1. n. a sum of money due as one of several equal payments for something, spread over an agreed period of time

  2. n. a single part of something (e.g., a story or project) delivered or published gradually

Structure
in <into>stal <place>ment <noun suffix>
Etymology

The word "instalment" originates from the verb install, which comes from Old French installer (to place, set up), derived from Medieval Latin installare (in- "into" + stallum "place, stall"). The suffix -ment was added to form a noun indicating the result or process of the action. Over time, "instalment" evolved to specifically denote partial payments or sequential parts, reflecting the idea of "placing" a larger obligation or project into smaller, manageable segments.

Examples
  1. She paid for the car in monthly instalments over three years.

  2. The novel was published in weekly instalments in a magazine.

  3. The final instalment of the loan is due next month.

  4. Fans eagerly awaited the next instalment of the film series.

  5. The furniture can be bought on an instalment plan.