infiltrer

to infiltrate

verb an-feel-TREH Rare

Origin: From in- + filtrer ('to filter'), from Medieval Latin filtrare.

Usage Note

Infiltrer is often used reflexively: s'infiltrer dans means 'to seep into' (water, ideas) or 'to infiltrate' (a group, an organization). The past participle is infiltré. Related noun: une infiltration (a leak or spy operation).

Examples

"L'agent s'est infiltré dans le réseau criminel."

Natural Translation

The agent infiltrated the criminal network.

Literal Translation

The agent infiltrated himself into the criminal network.

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