Băcâia [Bocaia] # Geoagiu (Hunedoara); Bakonya, Kisbakonya; Bachendorf, Backendorf, Bachnen (g); 1449, 1451 de Bakay szn. (KmJkv I. 387); 1509, 1511 Poss. Bakonya, 1518 Villa Bakanya (Csánki V. 71) 1576 Bakanj Mate, 1616 Martinus Bokaniaÿ, 1627 Bakonÿa Mihalj (SzO Ús IV. 69, 594, 778); 1760-1762 Bakánya (cB.); 1800 Bakanya (El. 1800); 1808 pag. Bakanya, Pakanya, Bachendorf, Bakája (Lipszky); 1817, 1827 Bakanya (El. 1817, 1827); 1839 Bakanya; Bekia, Bakya, Bakia (Lenk I. 84-85); 1850 Bakonya, Bekia, Bachnen (UES); 1873 Bakonya, Bekia, 1882 Bakonya, Bacaia, 1893 Bakonya (Hnt. 1873, 1882, 1893); 1909 Băcâia, Bakonya (Dicţionar 1909); 1913 Bakonya (Hnt. 1913); 1921 Bocaia, Bakonya (Dicţionar 1921); 1925 Băcâia (Leg. 95/1925); 1956 Băcâia (IAL) ✪ Hunyad vm.; 1785-1790 Hunyad vm.; 1800 In Comitatu Hunyad. Trans Marus, In Processu Algyogyiensi; 1817 In Comitatu Hunyadiesi, In Circulo Marus Superiori, Processu Gyógyiensi; 1939 Hunyad vm., Felső ker. Algyógyi j.; 1827 In Comitatu Hunyad; 1839 Hunyad vm., Felső ker. Algyógyi j.; 1850-1854 Gyfv. kat. vidék Gyfv. ker. Alvinci alker.; 1854-1860 Gyulafehérvári ker. Algyógyi j.; 1873 Hnvm., Almási j.; 1877 Hnvm., Gyógy-Almási j.; 1882-1918 Hnvm Algyógyi j.; 1919-1925 Jud. Hunedoara, pls. Geoagiul de jos; 1925-1950 Jud. Hundoara, pls. Geoagiu; 1950-1968 RHD r. Orăştie