From Greek 'naus' (ship), from PIE *neh2u- (boat) — same root as 'navy,' 'navigate,' 'nausea,' and 'astronaut.'
Of or concerning sailors or navigation; relating to ships and seafaring.
From Latin 'nauticus,' from Greek 'nautikos' (of sailors, of ships), derived from 'nautēs' (sailor), itself from 'naus' (ship). The PIE root is *neh₂u- meaning 'boat, ship,' one of the oldest reconstructed transportation terms in Proto-Indo-European, suggesting early familiarity with watercraft among the ancestral speakers. This root generated Sanskrit 'nau' (boat), Latin 'navis' (ship), Greek 'naus,' Old