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principal sum

principal sum

4.2
Original amount of money someone lends or invests that people pay interest on
  • noun
  • /ˈprɪnsəpəl sʌm/
  • Specialized
translation icon : capital
  • Investors must distinguish between the principal sum and the interest earned over time.

Examples

  • The principal sum will be repaid at the end of the loan term, with interest paid annually.

  • The principal sum must be repaid within five years.

  • She received the principal sum back after the bond matured, along with the accrued interest.

  • Investing the principal sum wisely can yield high returns.

  • The bank requires that the principal sum be paid back in full before any interest is calculated.

  • When applying for a loan, it's important to understand how the principal sum will affect your monthly payments.

  • Investors often focus on the principal sum when estimating the returns on their investments.

Synonyms

sum
vsprincipal sum
141 1.0

An amount of money considered as a whole

is the specific original invested or lent amount for interest calculation
principal
vsprincipal sum
  • Specialized
37 4.1

The original amount of money you borrow or invest

is the two-word form used as the fuller financial phrase
corpus
vsprincipal sum
  • Specialized
1 7.6

The main amount of money in an investment, not the interest

is the common term for the original amount rather than a technical label

How Much

estate
327 3.9
capital
  • Specialized
726 3.4
sum
141 1.0
principal sum
  • Specialized
4.2
pittance
15 7.9

Surface Forms

principal sum singular

Morphology

principal + sum

The meaning is directly and compositionally derived from 'principal' (the initial amount on which interest is computed) and 'sum' (a monetary total). Although it is a formal financial/legal collocation, the parts combine transparently and learners who know both words will readily infer the MWE's meaning; similar constructions exist in many languages.

Etymology

Principal sum comes from the words principal meaning the main or first part and sum meaning the total amount. Think of a pile of money you first lend: that 'original amount' is the principal sum, and the 'interest' is calculated from it, so the phrase means the main money you invested or lent.