The Early History (prior to "the original" Geoffrey) of
From A History of Dunster by H. C. Maxwell-Lyte, pg. 59
"Luttrell, originally spelt Luterel, or Loterel, was probably a diminutive of Loutre, the French word for otter. Applied in the first instance as a personal nickname, it became a hereditary surname. The fact that a certain Osbert Lotrel had the farm of Arques in Normandy in 1180 and 1198 rather tends to confirm the idea that the family was of foreign origin.*
* Rotuli Scaccarii Normannice (ed. Stapleton), vol. i. p. 65; vol. ii. p. 422.
A certain John Loutrel of Dieppe is mentioned as a subject of the French King in 1419. Three years later, Robert Loterel was presented to a church near Bayeux. Norman Rolls, 6 Hen. V. part 2, mm. 40, I; 9 Hen. V. m. 5.
The name of Luttrell does not occur in Domesday Book. It is almost needless to remark that the Roll of Battle Abbey, in which it is to be found, has no historical authority."
with information and links re: the early history of The Luttrells