Cockroft rhymes with:
howcroft, roycroft, rycroft, howcroft, pendergraft, roycroft, rycroft, howcroft, krabbenhoft, pendergraft, roycroft, rycroft
Cockroft sounds like:
carafate, carbide, carpet, carpeted, carved, charvat, corbet, corbett, corbit, corbitt, corrupt, corrupted, corvette, crabbed, craft, crafted, crafty, cravath, craved, crept, crofoot, croft, cropped, crypt, crypto, curbed, curved