noun, feminine/mɛ(d).za.nin/plural: mezzanines
mezzanine; entresol
PIE word *médʰyos Borrowed from Italian mezzanino, from mezzano (“(adjective) middle; (noun) go-between”) + -ino (diminutive suffix). Mezzano is derived from Latin mediānus (“central, middle”, adjective), from medius (“mid, middle”) (ultimately from Proto-Indo-European *médʰyos (“middle”)) + -ānus (suffix meaning ‘of or pertaining to’).