Pe·nul'ti·mate adjective Last but one; as, the penultimate syllable, the last syllable but one of a word. Found on http://www.encyclo.co.uk/webster/P/49
next to the last, as in the penultimate egg. Some birds like Tree Swallows start to incubate after laying the penultimate egg. Found on http://www.sialis.org/glossary.htm
adjective next to the last; `the author inadvertently reveals the murderer in the penultimate chapter`; `the figures in the next-to-last column` Found on https://www.encyclo.co.uk/local/20974