Meanings
Origin
From penta- (“five”) + deca- (“ten”). Compare Ancient Greek πεντεκαίδεκα (pentekaídeka, “fifteen”).
Full word history & related roots →Cite this entry
APA
pentadeca-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/pentadeca-
MLA
“pentadeca-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pentadeca-. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “pentadeca-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/pentadeca-.
Source: pentadeca- on Wiktionary, CC BY-SA 4.0.