custodian
UK[kʌˈstəʊ.di.ən]US[kʌˈstoʊ.di.ən]
n
a person who has responsibility for or looks after something
n
a person employed to clean and maintain a building
Morpheme Breakdown
custod
ian
custod
guard, keep
ian
person who
Etymology
The word 'custodian' is built upon the Latin noun custos, meaning "guard, protector, keeper." This Latin root itself is thought to derive from the Proto-Indo-European root (s)keu-, meaning "to cover, conceal," a concept that evolved into the idea of protection and safekeeping. The suffix -ian, indicating "one who is connected to," was added to form a Late Latin agent noun. Thus, the literal construction "one connected to guarding" evolved into the modern professional and abstract sense of a person entrusted with the care and maintenance of property, objects, or institutions.
Analysis
Structure: custod (guard, keep) + ian (person who)
- custod: From Latin custos, custod- meaning "guardian, keeper, watcher." Functions as the core semantic root.
- ian: A suffix of Latin origin (-ianus) used to form nouns meaning "a person who practices or is concerned with something."
Examples
The museum's custodian ensures the ancient artifacts are preserved in a controlled environment.
He was appointed custodian of his nephew's estate until the boy came of age.
The school custodian works through the night to clean the hallways and classrooms.