From BiblePortal Wikipedia

King James Dictionary [1]

Pure, a. L. purus.

1. Separate from all heterogeneous or extraneous matter clear free from mixture as pure water pure clay pure sand pure air pure silver of gold. Pure wine is very scare. 2. Free from moral defilement without spot not sullied or tarnished incorrupt undebased by moral turpitude holy.

Thou art of purer eyes than to behold evil. Hab 1Prov 20

3. Genuine real true incorrupt unadulterated as pure religion.  James 1 . 4. Unmixed separate from any other subject or from every thing foreign as pure mathematics. 5. Free from guilt guiltless innocent.

No hand of strife is pure, but that which wins.

6. Not vitiated with improper or corrupt words or phrases as a pure style of discourse or composition. 7. Disinterested as pure benevolence. 8. Chaste as a pure virgin. 9. Free from vice or moral turpitude.  Titus 1 10. Ceremonially clean unpolluted.  Ezra 6 . 11. Free from any thing improper as, his motives are pure. 12. Mere absolute that and that only unconnected with any thing else as a pure villain. He did that from pure compassion, or pure good nature.

Pure, To purify to cleanse. Not in use.

Webster's Dictionary [2]

(1): ( superl.) Ritually clean; fitted for holy services.

(2): ( superl.) Separate from all heterogeneous or extraneous matter; free from mixture or combination; clean; mere; simple; unmixed; as, pure water; pure clay; pure air; pure compassion.

(3): ( superl.) Of a single, simple sound or tone; - said of some vowels and the unaspirated consonants.

(4): ( superl.) Free from that which harms, vitiates, weakens, or pollutes; genuine; real; perfect; - applied to things and actions.

(5): ( superl.) Free from moral defilement or quilt; hence, innocent; guileless; chaste; - applied to persons.