lawn

Etymology 1

Early Modern English laune (“turf, grassy area”), alteration of laund (“glade”), from Middle English launde, from Old French lande (“heath, moor”), of Germanic or Gaulish origin, from Proto-Germanic *landą (“land”) or Proto-Celtic *landā, both from Proto-Indo-European *lendʰ- (“land, heath”). Akin to Breton lann (“heath”), Old Norse & Old English land. Doublet of land.

noun

1. (England, historical or regional) An open space between woods.
2. Ground (generally in front of or around a house) covered with grass kept closely mown.
   Pretty soon I struck into a sort of path […]. It twisted and turned,[…]and opened out into a big clear space like a lawn. And, back of the lawn, was a big, old-fashioned house, with piazzas stretching in front of it, and all blazing with lights. 'Twas the house I'd seen the roof of from the beach. 1913, Joseph C. Lincoln, chapter 1, in Mr. Pratt's Patients
3. (biology) An overgrown agar culture, such that no separation between single colonies exists.

Etymology 2

Apparently from Laon, a French town known for its linen manufacturing, from Old French Lan, from Latin Laudunum, a Celtic name cognate with Lugdunum.

noun

1. (uncountable) A type of thin linen or cotton.
   He looked through the glass at the fire, set it down on the end of the desk and wiped his lips with a sheer lawn handkerchief. 1939, Raymond Chandler, The Big Sleep, Penguin, published 2011, page 144
2. (in the plural) Pieces of this fabric, especially as used for the sleeves of a bishop.
3. (countable, obsolete) A piece of clothing made from lawn.
   […] she was as the wild yoncopin to the calla lily. Marjie knew how to dress. To-day, shaded by the buggy-top, in her dainty light blue lawn, with the soft pink of her cheeks and her clear white brow and throat, she was a most delicious thing […] 1910, Margaret Hill McCarter, The Price of the Prairie