serren.
/sɛr/Etymology: French, verbal noun < serrer , < popular Latin *serrāre : see serr v.
the world > food and drink > farming > gardening > equipment and buildings > [noun] > greenhouse or glass-house
1819 H. Busk iii. 147 Lock'd in my serres, from hail-engendering blast, Exotic fruits from spring to spring shall last.
This entry has not yet been fully updated (first published 1912; most recently modified version published online March 2018).