Spelt is a past tense and past participle form of spell. A hardy wheat grown mostly in Europe. A past tense and a past participle of spell. the past tense and past participle of spell. Subspecies (Triticum aestivum spelta) of wheat that has lax spikes and spikelets containing two light-red kernels. Triticum dicoccon was cultivated by the ancient Babylonians and the ancient Swiss lakedwellers; it is now grown for livestock forage and used in baked goods and cereals