Psi or Y, e.g

• The next to last syllable in a word
• Last but one
• Word's next-to-last syllable
• Next-to-last syllable
• Syllable before the last
• Next to the last syllable of a word

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Penult \Pe"nult\, n. [Abbreviated fr. penultima.] (Gram. & Pros.) The last syllable but one of a word; the syllable preceding the final one.

WordNet Word definitions in WordNet
n. the next to last syllable in a word [syn: penultima , penultimate ]

Wikipedia Word definitions in Wikipedia
A penult is a linguistics term for the second to last syllable of a word. It is an abbreviation of penultimate , which means the next to the last item in a series. The most common use of the word is in linguistics , where the word "penult" usually means ...