late 13c., "restorative powers of the body, bodily processes; powers of growth;" from Old French nature "nature, being, principle of life; character, essence," from Latin natura "course of things; natural character, constitution, quality; the universe," literally "birth," from natus "born," past participle of nasci "to be born," from PIE root *gene- "give birth, beget."
By mid-14c. as "the forces or processes of the material world; that which produces living things and maintains order." From late 14c. as "creation, the universe;" also "heredity, birth, hereditary circumstance; essential qualities, inherent constitution, innate disposition" (as in human nature); also "nature personified, Mother Nature." Specifically as "the material world beyond human civilization or society; an original, wild, undomesticated condition" from 1660s, especially in state of nature "the condition of man before organized society." Nature and nurture have been paired and contrasted since 1874. Nature-worship "religion which deifies the phenomena of physical nature" is by 1850.
Nature should be avoided in such vague expressions as 'a lover of nature,' 'poems about nature.' Unless more specific statements follow, the reader cannot tell whether the poems have to do with natural scenery, rural life, the sunset, the untouched wilderness, or the habits of squirrels. [Strunk & White, "The Elements of Style," 3rd ed., 1979]