pure

Such was the origin of a friendship as warm and pure as any that ancient or modern history records.

A guinea is pure gold if it has in it no alloy.

Laye hondes sodely on no man nether be partaker of other mes synnes: kepe thy silfe pure.

That idea is pure madness!

The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason. The architect of modern science was himself not very modern. He was obsessed with alchemy.