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· Ancient Greek
δεκάς
4 English words descend from Ancient Greek
δεκάς
, most common first.
decade
A group, set, or series of ten , particularly
deca
The anabolic steroid nandrolone decanoate.
deca-
Ten.
dekad
Ten days, especially of rainfall. Generally identified as dekad 1: 1ˢᵗ-10ᵗʰ, dekad 2: 11ᵗʰ-20ᵗʰ, and dekad 3: 21ˢᵗ-last day of each month.