köken: Borrowed from Spanish nuestramo or Catalan nostramo (“notary”), from nuestro amo/el nostre amo (“our master”), under the influence of uomo (“man”).
köken: Borrowed from Italian nostromo with dissimilation of consonants [n]-[m] > [l]-[m], from Catalan nostramo or Spanish nuestramo < nuestro (“our”) amo (“master”), used in 16th century slave galleys as "overseer".
köken: Inherited from Old Swedish batsman, either from Middle Low German bōsman or Middle Dutch bōtsman. Equivalent to båt + -s- + man. Compare English boatsman, Dutch bootsman, German Bootsmann.
köken: Etymology tree German Boot German -s- Proto-Indo-European *mon- Proto-Germanic *mann- Proto-West Germanic *mann Old High German man Middle High German man German Mann German Bootsmannbor. Polish bosman Borrowed from German Bootsmann.