Outwatch

Part of speech: verb

Definitions

1. To keep a discreet and extended observation on a person or event To maintain vigilance over a situation, being unnoticeable while doing so To have a longer span of careful scrutiny or monitoring than others do
2. To carefully watch someone or something over a period without being detected
3. To maintain a steady and cautious surveillance of an event or individual without drawing attention

Etymology: "Outwatch" is a plain compound: the prefix "out-" added to the verb "watch." In English, "out-" can mean "beyond," "more than," or "surpassing," as in "outrun" or "outlive," and here it works in that sense, so that to outwatch someone is to keep watch longer or more closely than they do, turning the observation against them. The word's sense of watching someone in secret follows from that idea of surpassing. Watching a person is already a form of attention directed at them, and when the watcher does it more intently or more covertly than the watched person can detect, the act becomes a kind of quiet victory. The word is therefore best understood as built from familiar parts rather than borrowed from another language, and its meaning grows naturally out of those parts.