rinca noun "twitch, jerk, trick, sudden move" (VT46:11 cf. RIK(H) )
Quenya
rihta-
jerk, give quick twist or move, twitch
rinca
twitch, jerk, trick, sudden move
vá
i will not!
vá exclamation "I will not!" or "Do not!", interjection accompanied by a "jerk back of head" (PE17:145). It was inflected only in the 1st person sing. and 1st person pl. exclusive: ván, ványë "I won't!", vammë "we won't" (WJ:371, PE17:143; read *valmë in Second Edition Quenya, after Tolkien revised the pronominal suffixes in the sixties).
rihta- vb. "jerk, give quick twist or move, twitch" (RIK(H) )