jardim m (plural jardins)
From Old Portuguese jardin (“garden”), from Old French jardin (“garden, enclosure”), probably from Vulgar Latin or early Gallo-Romance hortus gardinus, from Old Frankish *gardin, oblique case of *gardo (“enclosure, yard”), from Proto-Germanic *gardô (“enclosure, garden, house”), from Proto-Indo-European *gʰordʰos (“hedge, enclosure”), from Proto-Indo-European *gʰerdʰ- (“court, yard”).
Compare Galician xardín, Spanish jardín, Catalan jardí, Occitan jardin, French jardin and Italian giardino.