adhbhal

vast, awful, so Irish, Old Irish adbul: *ad-bol-; Indo-European root bhel, swell, as in English bloom, etc. Zimmer compares it with Sanskrit bala, strength. Stokes and Osthoff give root bel, bol, strong, big, Sanskrit balam, strength, Greek $$Gbélteros, better, Latin de-bilis, weak, Church Slavonic boliji$$u, greater; whence bailceach (Osthoff) and bail, buil.