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Webster 1828 Edition

ppr.

Investing with a crown, or with royalty or supreme power; honoring with a wreath or with distinction; adorning; rewarding; finishing; perfecting.

Noun.

In architecture, the finishing of a member or any ornamental work.

In marine language, the finishing part of a knot, or interweaving of the strands.

crowning

crowning ‎(comparative more crowning, superlative most crowning)

Supreme; of a surpassing quality or quantity.

a crowning achievement

crowning glory

crowning ‎(plural crownings)

A coronation.
The crownings of the two successive monarchs were only a year apart.
The act of one who crowns (in various senses).
- 1860, Fraser's Magazine (volume 61, page 711)
  There were outflankings and crownings of hills by numbers of thirteen and seventeen men, that made one hold one's breath.