Mantling

v. cover with a mantle, wrap in a cloak; hide, conceal; spread across or over; blush; be coated

In heraldry, mantling or lambrequin is drapery tied to the helmet above the shield. It forms a backdrop for the shield. In paper heraldry it is a depiction of the protective cloth covering (often of linen) worn by knights from their helmets to stave off the elements, and, secondarily, to decrease the effects of sword-blows against the helmet in battle, from which it is usually shown tattered or cut to shreds; less often it is shown as an intact drape, principally in those cases where a clergyman uses a helmet and mantling (to symbolise that, despite the perhaps contradictory presence of the helmet, the clergyman has not been involved in combat), although this is usually the artist's discretion and done for decorative rather than symbolic reasons.
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Noun
1. the cloak as a symbol of authority; "place the mantle of authority on younger shoulders"
(hypernym) symbol
2. the layer of the earth between the crust and the core
(hypernym) layer
(part-holonym) lithosphere, geosphere
(part-meronym) lower mantle
3. anything that covers; "there was a blanket of snow"
(synonym) blanket
(hypernym) covering, natural covering, cover
4. (zoology) a protective layer of epidermis in mollusks or brachiopods that secretes a substance forming the shell
(synonym) pallium
(hypernym) epidermis, cuticle
(classification) zoology, zoological science
5. shelf that projects from wall above fireplace; "in England they call a mantel a chimneypiece"
(synonym) mantel, mantelpiece, mantlepiece, chimneypiece
(hypernym) shelf
(part-holonym) fireplace, hearth, open fireplace
6. hanging cloth used as a blind (especially for a window)
(synonym) curtain, drape, drapery, pall
(hypernym) blind, screen
(hyponym) drop curtain, drop cloth, drop
7. a sleeveless garment like a cloak but shorter
(synonym) cape
(hypernym) cloak
(hyponym) chlamys
Verb
1. spread over a surface, like a mantle
(hypernym) diffuse, spread, spread out, fan out
(derivation) blanket
2. cover like a mantle; "The ivy mantles the building"
(hypernym) cover, spread over
(derivation) blanket

(p. pr. & vb. n.)
of Mantle
  

(n.)
The representation of a mantle, or the drapery behind and around a coat of arms: -- called also lambrequin.
  

The cloth decor suspended from a helmet, commonly illustrated in armorial artwork. The most splendid references to mantling are to be found in King René's Livre Tournoi, where they are shown matching or enhancing the heraldic colors worn by tournament combatants. See Chronique: The Journal of Chivalry #10 .