Definition of "delf"
delf
noun
plural delfs or delves
(heraldry) A charge representing a square sod of turf, traditionally taking the form of a simple square (e.g. in the middle of an escutcheon), although modernly sometimes represented with the grass in profile. Canting arms of Delves, in Devon: Argent, a chevron gules fretty or between three delves sable.
Alternative form of delft (“style of earthenware”)