antepenultimate

[ an-tee-pi-nuhl-tuh-mit ]

/ ˌæn ti pɪˈnʌl tə mɪt /

third from the end.

of or relating to an antepenult.

an antepenult.

Origin of antepenultimate

First recorded in 1720–30; antepenult + (ult)imate

pre·an·te·pe·nul·ti·mate, adjective

On that place, if it be on the penultimate or antepenultimate, the accent should be laid in English.

Notes and Queries, Number 216, December 17, 1853 |Various
Even when the stress falls on this antepenultimate i, it is short in English speech.

Society for Pure English Tract 4 |John Sargeaunt
It need hardly be said that 'tea-houses' like 'grandfathers' has the stress on the antepenultimate.

Society for Pure English Tract 4 |John Sargeaunt
It lies between the penultimate and antepenultimate pair of legs.

The Works of Francis Maitland Balfour, Volume 1 |Francis Maitland Balfour

Only six thousand pounds now required for the great ultimate, or penultimate, or antepenultimate effort.

Ireland as It Is |Robert John Buckley (AKA R.J.B.)

antepenultimate

/ (ˌæntɪpɪˈnʌltɪmɪt) /

third from last

anything that is third from last