endorser
UK[ɪnˈdɔːsə(r)]US[ɪnˈdɔːrsər]
n
A person or organization that publicly supports or recommends a product, service, or person.
n
A person who signs the back of a cheque or other negotiable instrument to make it payable to someone else or to confirm its legality.
Morpheme Breakdown
en
dors
er
en
put onto
dors
back
er
agent suffix
Etymology
The word 'endorser' is built upon the verb 'endorse', which entered English in the 16th century from the medieval Latin 'indorsare', meaning "to write on the back". This Latin term itself is a combination of the prefix 'in-' (on) and 'dorsum' (back), literally describing the act of signing a document on its reverse side. The '-er' suffix, a common agent-forming element in English, was appended to create a noun for the person performing this action. Over time, the meaning expanded metaphorically from the literal act of signing one's back to the figurative act of giving support or backing to an idea, candidate, or product, thus an endorser is one who puts their name or reputation "on the back" of something to validate it.
Analysis
Structure: en (put onto) + dors (back) + er (agent suffix)
en: A prefix of Latin origin (from in-), meaning "in, into, on, onto".
dors: A root of Latin origin (from dorsum), meaning "back".
er: An agent noun suffix of Old English/Germanic origin, meaning "a person or thing that does something".
Examples
The famous athlete became the primary endorser for the new sports drink brand.
As the endorser of the cheque, she was liable for its payment.
Consumer trust often depends on whether a credible public figure is the endorser of an advertisement.