The three main devices (symbols) in the Kirkaldie blazon are the star, crescent and chevron. The three main tinctures (colors) are argent, or and gules .
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 1. In a sketch or drawing it is represented by plain, unmarked paper 2.
The bright yellow colour frequently found in coats of arms is known to heralds as Or, or sometimes simply as Gold.3. Along with, argent, or silver it forms the two “metals” of heraldry – one of the guidelines of heraldic design is that silver objects should not be placed upon gold fields and vice versa 4. The yellow colour is often associated with the Sun, and the zodiacal sign of Leo.5.
Gules, the heraldic colour red is very popular, sometimes said to represent “Military Fortitude and Magnanimity”6. It is usually abbreviated as gu and in the days before colour printing was shown in a system known as hatching by vertical lines 7. Although it may look like a French word it is normally pronounced with a hard “g” and may be derived either from the Latin gula (throat) or Arabic gule (rose).8
There were of course many widely recognised symbols that existed long before the advent of heraldry and it should be no surprise that some of these were adopted as charge in coats of arms 9. The estoile is a typical example, reflecting the stars in the sky and represented with six wavy points, often with a little shading to give it some depth. 10. The ancient writer Guillim assigns these symbols as the emblems of God’s goodness”. 11More modern arms might use the term star explicitly to refer to the celestial object, in which case it is usually known as a blazing star 12
For easy recognition of the items on a coat of arms, and hence the quick identification of the owner, bold simple shapes are best. Hence, simple geometric shapes are often used for this purpose 13xz`, and the crescent Is a typical example of this, and can appear in any of the main heraldic tinctures. Some common is this device that there are special names for its appearance in various orientations – whilst it lies normally with points upward, the decrescent points to the sinister side, and the increscent to the dexter 14. The allusion, obviously is to the shape of the moon in the sky (indeed, the French have a version “figuré” which includes a face!) and has been said to signify both “honour by the sovereign” and “hope of greater glory” 15.
The chevron is one the major shapes used upon a shield, known as ordinaries. The inverted ‘V’ of the chevron is perhaps thought to have originated to represent a military scarf folded on the shield 16, or additional cross-pieces used to strengthen the shield and painted a different colour.17. It has also acquired the meaning of “Protection… granted… to one who has achieved some notable enterprise” 18, possibly becuase of its resemblance to the roof truss of a house.