instalment
131amount paid up — /əˌmaυnt peɪd ʌp/ noun an amount paid for a new issue of shares, either the total payment or the first instalment, if the shares are offered with instalment payments …
132instal — [16] To instal someone was originally literally to put them ‘into a stall’. The word comes from medieval Latin installāre, a compound verb based on the noun stallum ‘stall’, and referred originally to the formal induction of someone into an… …