infiltrator
UK[ˈɪnfɪltreɪtə(r)]US[ˈɪnfɪltreɪtər]
n
a person who secretly becomes a member of a group or enters a place in order to get information or cause damage.
n
a soldier or vehicle that moves into enemy territory secretly and without being seen.
Morpheme Breakdown
in
filtr
ator
in
in
filtr
filter
ator
agent suffix
Etymology
the word 'infiltrator' is built on the verb 'infiltrate', which entered english in the 18th century from medieval latin infiltrare. this latin term was a compound of the prefix in- (into) and filtrum (felt). the core metaphor likens the secretive entry of a person or substance to a liquid slowly seeping or filtering through a porous material like felt. the agent suffix -ator was then appended to create a noun for the person who performs this action. thus, the modern sense of a covert agent or soldier moving undetected into an organization or area is a direct conceptual evolution from this physical process of gradual, unseen penetration.
Analysis
Structure: in (in) + filtr (filter) + ator (agent suffix)
- in: from latin, meaning "in, into, within". a prefix indicating entry or inward motion.
- filtr: from latin filtrum (felt, a porous material used for straining). this root conveys the concept of passing through a filter or porous barrier.
- ator: from latin -ator, an agent noun suffix indicating a person or thing that performs an action.
Examples
the security team was on high alert for any potential infiltrator.
the novel's protagonist is an infiltrator working undercover within the criminal syndicate.
modern cybersecurity systems are designed to detect digital infiltrators before they can access sensitive data.