←
Old English stearn (cognate)
←
Middle English terne (inherited)
←
Old French terne (derived)
←
Proto-Indo-European *tekʷ- (root)
←
Proto-Indo-European *tekʷ- (derived)
←
Proto-Indo-European *tréyes (derived)
←
Norwegian terne (cognate)
←
Old Norse þerna (derived)
←
Swedish tärna (cognate)
→
English stern (mention)
→
English terne (mention)
→
Norwegian Nynorsk terne (cognate)