Three genitives singular in -AIS are found in Irish Ogham inscriptions: GEBBAIS MAQI TANAIS and BIR MAQI MUCOI ROTTAIS 'of G, son of T', and 'of B, son of the posterity of R.'" Concerning these forms Professor John MacNeill wrote: 'I cannot equate [them] in MS. Irish or elsewhere. I think they may arise from faulty inscription, or may be pseudoarchaisms. The names in which they occur have not been identified by MS. equivalents. . . . Of final consonants, s only is noted; it disappears before the latest Ogham forms appear, but may be written artificially, as in Gosochtos 223, and perhaps in the genitives in -ais. s . . I cannot refer these to any known declension'. Beside these genitives in -AIS there are seven in -AI: CARRICAI (6), ERAQETAI (165), MOGAI (170), QERAI (78, 79), QETAI (Journal of the Royal Society of Antiquaries of Ireland, 1895, 102), SENAI (222), and