From the Bovington Tank Museum:
The name Matilda means Strength in Battle from the Germanic roots Maht, meaning strong and Hild meaning battle.
The Matilda was regarded as a superb tank in its day and carved a remarkable career for itself. A few served in France in 1940 but in the early stages of the North African campaign, under General Wavell, it virtually ruled the desert. Even when the Afrika Korps arrived it remained a formidable opponent, immune to everything but the notorious 88mm gun. Its main failings were its slow speed and small gun, which could not be improved.