Based on erase, new words formed by adding one letter at the beginning or end:
c - crease d - erased reseda seared g - agrees eagers eagres grease ragees h - haeres hearse i - aeries easier k - rakees l - larees leaser reales resale reseal sealer m - ameers ramees seamer n - ranees p - serape t - aretes easter eaters reseat seater teaser u - reseau urease v - averse reaves z - razees