Letters that make unrecoverable
a, o, b, e, l, n, c, r, u, v are letters that make 'unrecoverable'
Words within unrecoverable
ER, AB, ab, re, ERA, OV, EC, UN, cover, able, recoverable, over, RA, CO, cove, Ra, Re, LE, Co, Er, Ab, era, recover are words within 'unrecoverable'