PINK

From: The Egyptian Chronicles
Message: 69073
Date: 2012-03-27

I am looking into the etymology of the color "pink".
 
Online Dictionary gives the following puzzling definitions:
 
"1- pink (n., adj.) 1570s, common name of Dianthus, a garden plant of various colors. Attribution to 'pale rose color' first recorded 1733 (pink-coloured is recorded from 1681).

2- pink (v.) c.1300, "pierce, stab, make holes in," perhaps from a Romanic stem *pinc- (cf. Fr. piquer, Sp. picar), from L. pungere "to pierce, prick" (see pungent). Surviving mainly in pinking shears."
 
 
Any logical explanation for the connection between the sense of "pierce, stab, make holes in,"  and the color "pink"?
 
 
Thanks in advance for your input.
 
Ishinan