deka-

1.
a combining form meaning “ten,” used in the names of metric units which are ten times the size of the unit denoted by the base word:
dekaliter.
Also, especially before a vowel, dek-.
Compare deci-.
Origin
< Greek deka-, combining form of déka ten
British Dictionary definitions for dek

deka-

combining form
1.
variants of deca-
dek in Medicine

deka- or dek-
pref.
Variants of deca-.

dek in Technology