nocks is nock's Plural Form

nock

US 
UK 
  • n.(弓的)弧口;箭的尾端[扣弦处];【航】帆的前部上端
  • v.给(弓)装弧口;搭箭于(弓上)
Plural Form:nocks  Present Participle:nocking  Past Participle:nocked  
n.
1.
(弓的)弧口;箭的尾端[扣弦处]
2.
【航】帆的前部上端
v.
1.
给(弓)装弧口
2.
搭箭于(弓上)