Akademik

undermost

I. \\ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\ adjective

Etymology: under (III) + -most

: lowest in relative position

undermost layer

II. adverb

: in the lowest or lower position : on the underside

with the dark layer undermost

put the rubber sheet undermost

Useful english dictionary. 2012.