IPA: /ɪkˈskjuːzər/
KK: /ɪkˈskjuːzər/
A person who makes excuses for someone else or forgives their mistakes.
He acted as an excuser for his friend's late arrival, explaining the traffic situation.
Excuser → It is formed from "ex-" (meaning out of or from) and "causa" (meaning cause or reason). The word "excuser" means to free someone from a cause or reason for blame or fault.
Think of someone being freed from a 'cause' ('causa') of blame — 'ex-' means out of, so to excuser means to let someone out of a reason for fault.