From Japanese-German FreeDict Dictionary ver. 0.2.0:
妾 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 私 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, わらわ /wäɽˈäwä/ (pronoun) (nouns which may take the genitive case particle `no')
Note: archaism Note: humble (kenjougo) language Note: female term or languageich (obsolet; von Frauen benutzt)
From Japanese-German FreeDict Dictionary ver. 0.2.0:
[news2] [nf47] 妾 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 目掛け /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə kˈe̞/, 目掛 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 側女 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 側妻 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, (妾) (目掛け) (目掛) [news2] [nf47] めかけ /me̞kˈäke̞/, (妾) (側女) (側妻) そばめ /so̞bˈäme̞/, (妾) (out-dated or obsolete kana usage) おんなめ /o̞nnˈäme̞/ (noun (common) (futsuumeishi)) (1) (f) Nebenfrau, (f) Konkubine, (2) (f) Kammerzofe, (f) Zofe, (n) Kammerfräulein, (n) Kammermädchen, (f) Kammerfrau, (f) Kammerjungfer, (f) Konkubine, (f) Mätresse, (f) Nebenfrau