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plac·a·ble

(plăkə-bəl, plākə-)

adj.

Easily calmed or pacified; tolerant.

[Middle English, agreeable, from Old French, from Latin plācābilis, from plācāre, to calm; see plāk-¹ in the Appendix of Indo-European roots.]

plac′a·bili·ty n.

placa·bly adv.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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