தரையாணி

ஆணிவகை. (w.) A double-headed spike, clinched and headed at the smaller end after being driven in;

Tamil Lexicon

, ''s.'' A double headed spike after being driven. ''(Beschi.) (c.)''

Miron Winslow

tarai-y-āṇi,
n. தரை-+.
A double-headed spike, clinched and headed at the smaller end after being driven in;
ஆணிவகை. (w.)

DSAL