Based on signer, new words formed by adding one letter at the beginning or end:
a - eginrs b - earings c - erasing d - gainers e - reagins f - regains g - reginas h - searing l - seringa n - bingers o - cringes p - dingers r - engirds s - greisen t - fringes u - gingers v - niggers w - serging y - snigger z - hingers
