EXFILTRATING is validvalid

EXFILTRATE, [v EXFILTRATED, EXFILTRATES, EXFILTRATING] : EXFILTRATION [v]

167,958 of 196,601 in NWL2023·also valid in CSW24

EXFILTRATE, to remove or withdraw (an intelligence agent, soldier, etc.) surreptitiously from an enemy-held area [v]