nau+tical....nau in hindi means BOAT...so nautical is pertaining to ships or navigation
aero nautical = related to aeroplanes (in air);nautical= related to ships(in water)
By Root : Nautes means sailor. Nautical - Sailor mainly in ships.
"sexy nautical girls are naughty sailor girls who have sailed the world and pirated the sea of men."
knot the cal(stone) to turn the shape -> (nautical)