B’ e Y an còigeamh litir air fhichead den aibidil Laidinneach. B' e sinnsear tùsail aig "Y" an litir Seimeach Waw, a rinn na litrichean F, U, V, is W. Faic F. Thainig e a Υψιλον (Upsilon) sa aibidil Greugach

Y
Y
Aibidil Ròmanach
Aa Bb Cc Dd
Ee Ff Gg Hh Ii Jj
Kk Ll Mm Nn Oo Pp
Qq Rr Ss Tt Uu Vv
Ww Xx Yy Zz