This is my edited question:
I look up in the etymological dictionay about prick, and find that prick is not a word derived from Proto-indo-european etymon.
Meanwhile, I find a lot of words meaning "prick, stick, pierce, spear, rod, etc.",
words starting with "br-"
such as brad, bristle, brittle
words starting with "st-"
such as stick, stake, stipe
and find pierce, which contains p and r, but etymologically it is composed with *per1 "forward, through" + *(s)teu-1 "To push, stick, knock, beat".
So, I start to wonder whether there is or no words derived from PIE, which starts with "pr-" and has the similar meaning to prick, such as "prick, stick, pierce, spear, rod,etc.".