Letters that make secondary diagonal
s, a, o, d, e, g, l, n, c, r, i, y are letters that make 'secondary diagonal'
Words within secondary diagonal
EC, SEC, DIA, DA, Ag, ar, SE, secondary, second, go, diagonal, on, ago, sec, agonal, con, agon, AL, AR, CO, IA, ND, Iago, Al, Ar, Co, Nd, Se, Na are words within 'secondary diagonal'