Definition of "undermost" []

• Lowest in position, rank, or place; bottom. (adjective)
• In or to the lowest place. (adverb)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "They fell heavily, the jailor undermost, upon the floor of the dungeon, and Robert of Paris, the necessity of whose case excused the action, plunged his dagger in the throat of the unfortunate."
• "An extraordinary medley of feeling — but it was not a medley, exactly; rather it was successive layers of feeling, in which one could not say which layer was undermost — struggled inside him."
• "Our American friends have stood with us in the most critical of times and undermost the intense pressure."