perhaps from sinomai (to hurt, i.e. sting); TDNT - 7:287,1027
AV - mustard seed 5; 5
1) mustard, the name of a plant which in oriental countries grows from a very small seed and attains to the height of a tree, 10 feet (3 m) and more; hence a very small quantity of a thing is likened to a mustard seed, and also a thing which grows to a remarkable size