Italic languages, [146], [159].
Italy, [15], [17], [35], [37], [44], [57], [58], [77], [78], [83]–[85], [94], [95], [97]–[99], [109], [119], [122], [127]–[129], [131], [145]–[148], [152], [162], [163], [168].
James, William, [110].
Jastrow, Morris, [58].
Jaxartes, [137].
Jones, Sir John Morris, [29].
Jones, Sir William, [132].
Joshua, [53].
Jubainville, H. Arbois de, [169].
Jura mountains, [18].