plat·i·tude (plătĭ-td′, -tyd′)
1. A trite or banal remark or statement, especially one expressed as if it were original or significant. See Synonyms at cliché.
2. Lack of originality; triteness: "a passage of platitude which no critical prejudgment can force us to admire" (Edgar Allan Poe).
[French, from plat, flat, from Old French; see PLATE.]
plat′i·tudi·nous (-tdn-əs, -tyd-), plat′i·tudi·nal (-tdn-əl, -tyd-) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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:
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.