5 letters:
cecum, faden, fagan, fegan, saban, sagan, satan, sebum, secam, sedam, sedum, sepon, seten, setim, vaden, vegan

6 letters:
cep in, feagan, fed in, phagan, saidan, saipan, second, sec in, seddon, sepawn, sep in, set in, shaban, shaken, shapen, thaden, verdon, verdun, vet in, virden, zed in, zircon

7 letters:
certain, ceta in, fade in, fait in, fait un, fake in, fate in, fed him, feighan, fete in, said in, sake in, sate in, sec him, serb in, set him, shaiken, shaitan, shaytan, shebang, shechem, shedden, shed in, shek in, sur ton, vection, veda in, vega in, verb in, vert in, vet hum, zeta in

8 letters:
cedaw in, circa un, fake him, sate him, say been, say come, say done, say king, sette in, set ting, shade in, shake in, shape in, shirk in, shirt in, sir king, theca in, theta in, third in, third un, vague in

9 letters:
cirque in, fate hung, furred in, sake come, shaikh in, shake him, shaykh in, they been, they come, they done

10 letters:
shade hung, shirt hung