"Engrailing" is a word in ENGLISH

To variegate or spot, as with hail.

To indent with small curves. See Engrailed.

To form an edging or border; to run in curved or indented lines.

of Engrail

Indented with small concave curves, as the edge of a bordure, bend, or the like.

The ring of dots round the edge of a medal, etc.

Indentation in curved lines, as of a line of division or the edge of an ordinary.

Having a border or outline composed of semicircles with the convexity outward; -- the opposite of engrailed.

A bearing representing the head of a dart or javelin, with long barbs which are engrailed on the inner edge.