贝思 is a common phonetic rendering of 'Beth' — the gentle middle sister in Louisa May Alcott's 《
小妇人》 (Little Women) is often rendered this way (though
贝丝 is now more standard). It can also represent 'Bess'.
贝 (bèi) ~ 'Be-' +
思 (sī) ~ '-th';
贝 also functions as a common surname in transliteration (Bell, Bay, etc.).
