Alternatively, Khatt, you might prefer this...

"Where does pedigree come from?

It came to English in the late 14th to early 15th century and is first recorded in 1410, when it was written pedicru. It has been traced to Norman French pied de grue "crane's foot". What on earth does a crane's foot have to do with genealogy? Well, descendants in a pedigree are indicated with something like this /|\, branching out from the names of their parents. That mark does somewhat resemble the foot of a crane. Pied comes from Latin pes "foot", and grue from Latin grus "crane". The suggestion that pedigree derives from Norman French par degrés "by degrees" (which is how names in a pedigree are listed) is superficially plausible but it lacks any supporting evidence.

Speaking of cranes, the Indo-European root from which grus comes is ger¿- (where ¿ represents schwa), which means "crane" and also "to cry hoarsely". It is from the "hoarse" meaning that English crow derives.

One of the old variant spellings of pedigree is pettigrew but the British surname Pettigrew (first recorded in the 13th century) does not appear to be related. None of the Pettigrews we consulted knew exactly where the name originated, but the most popular guess seemed to be a French placename."