token
Etymology
From Middle English token, taken,
from Old English tācn (“sign”),
from Proto-West Germanic *taikn,
from Proto-Germanic *taikną,
from Proto-Indo-European *deyḱ- (“to show, instruct, teach”) with Germanic k* rather than h* by Kluge's law.[1]
The verb is from Middle English toknen,
from Old English tācnian.