bower (n.) Look up bower at
Old English bur "room, hut, dwelling, chamber," from Proto-Germanic *bowan (source also of Old Norse bur "chamber," Swedish bur "cage," Old Danish both "dwelling, stall," Old High German bur "dwelling, chamber," buan "to dwell," German Vogelbauer "(bird)cage"), from PIE root *bheue- "to be, exist, grow." Modern spelling developed after mid-14c. Sense of "leafy arbor" (place closed in by trees) is first attested 1520s. Hence, too, Australia's bower-bird (1847).