navigation (n.)

1530s, from Middle French navigation (14c.) or directly from Latin navigationem (nominative navigatio) "a sailing, navigation, voyage," noun of action from past participle stem of navigare "to sail, sail over, go by sea, steer a ship," from navis "ship" (from PIE root *nau- "boat") + root of agere "to set in motion, drive, drive forward" (from PIE root *ag- "to drive, draw out or forth, move").