simple

²simple

noun

Definition of SIMPLE

1

a : a person of humble birth : commoner <thought very little of anybody, simples or gentry — Virginia Woolf> b (1) : a rude or credulous person : ignoramus (2) : a mentally retarded person

2

a : a medicinal plant b : a vegetable drug having only one ingredient

3

: one component of a complex; specifically : an unanalyzable constituent

First Known Use of SIMPLE

14th century