deca-

• dec- (before a vowel)
• deka-, dek-

Borrowed from French déca-, from Late Latin decas (“(set of) ten”), from Ancient Greek δεκάς (dekás), from δέκα (déka, “ten”).

• IPA^(key): /dɛkə-/

• Audio (Southern England):

  (file)

deca-

1. Ten.

   Synonym: deci- (Latin-derived counterpart)

   ‎deca- + ‎-gon → ‎decagon

2. In the metric system, multiplying the unit to which it is attached by 10. Symbol: da

• Thesaurus:number

• “deca-, comb. form”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.

• -cade, CEDA, Cade, aced, cade, dace, ecad

Borrowed from French déca-, from Late Latin decas (“(set of) ten”), from Ancient Greek δεκάς (dekás), from δέκα (déka, “ten”).

• IPA^(key): /ˈdeː.kaː/

• Audio:

  (file)

deca-

1. deca-

Ultimately from Ancient Greek δεκάς (dekás), from δέκα (déka, “ten”).

deca-

1. deca-

• cade, ceda

Ultimately from Ancient Greek δεκάς (dekás), from δέκα (déka, “ten”).

• Hyphenation: de‧ca-

deca-

1. deca-

• deca
• decá

• “deca-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “deca-”, in Dicionário Eletrônico Houaiss [Houaiss Electronic Dictionary] (in Portuguese), São Paulo: UOL, 2004–2026
• “deca-”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
• “deca-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Ultimately from Ancient Greek δεκάς (dekás), from δέκα (déka, “ten”).

deca-

1. deca-

• “deca-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025