Transdeletion pyramid

A transdeletion pyramid (also called a transaddition pyramid or word pyramid when inverted) is a logological term for the triangular representation of a list of words in which each one is a scrambled form of the above word without one letter.

This seventeen-letter transdeletion pyramid, made of inferred words in an Unabridged Merriam-Webster dictionary, can be found in Ross Eckler's book Making the Alphabet Dance:

A N T I C E R E M O N I A L I S T
 N O N M A T E R I A L I T I E S
  O R N A M E N T A L I T I E S
   I N T E R L A M I N A T E S
    M A T E R N A L I T I E S
     M A T R I L I N E A T E
      T R I L A M I N A T E
       T E R M I N A L I A
        L A T I M E R I A
         M A T E R I A L
          T A L I E R A
           R E T A I L
            A L T E R
             R A T E
              T E A
               A T
                A
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