chronometer

Where does the word "chronometer" come from? It comes from Greek chronos, and was adopted directly into English (1735).

Chronometer’s story begins in Greek: chronos meant “time.” Time, combined with metron (measure). It reached English by 1735 as chronometer. Coined from Greek chronos (time) and metron (measure) for a precise timekeeping instrument. Today, chronometer means an instrument for measuring time with great precision, especially at sea.

1. Stage 1 · Greek · ancient chronos "time", time, combined with metron (measure).
2. Stage 2 · English · 1735 chronometer "a precise timekeeping instrument", coined from Greek chronos (time) and metron (measure) for a precise timekeeping instrument.