Pyramidal windmill
In a pyramidal windmill (or pyramill), one half of the longest word forms the baseword for a pyramid, and its other half forms the baseword for an inverted pyramid. In addition, a word will be formed on the long diagonal of the form; this word will always read from left to right.
LEFT PYRAMIDAL WINDMILL
S
HOT
PUREE
MANTRAP
PARTERRES
BARKSDALEAIRFORCEBASE
SIBYLLINE
TIDALLY
EERIE
ROE
S
RIGHT PYRAMIDAL WINDMILL
S
GAD
NIVEN
AEROBIA
GRATITUDE
COMINGAPARTATTHESEAMS
RIVERSIDE
DEPOSEE
SAVER
LET
S
In the truncated version, the diagonal word starts at the first letter of the leftmost two-letter across word, goes up or down the diagonal as appropriate, and ends at the second letter of the rightmost two-letter across word. In the examples below, the diagonal entries are TENT DRESSES and PETE SAMPRAS.
TRUNCATED LEFT PYRAMIDAL WINDMILL
TE
CONN
HEGOAT
REPULSED
MALEPATTERNBALDNESS
EAGEREST
SEVERS
SEED
ES
TRUNCATED RIGHT PYRAMIDAL WINDMILL
AS
RITA
PALATE
MAKETTLE
DOUBLEBREASTEDSUITS
SKIAREAS
EEYORE
RUST
PE