Viola: violin, viola, violet, violent, girl, fancy, feminine, spring, flower, blossom, beauty, perfume Young.
Olivia: olive, garden, trees, Greece, Italy, Europe, oil, green & black, vineyard, feminine, older/mature. Earthy.
Maria: Mary, Mariah. Fiesty. Peaceful, Bible. Wind. Sound of Music. Green hills. Marry. Marriage. Mary had a little lamb. Merry. Happy.
Malvolio: MAL=bad VOL=volition, will. Someone with vaunting ambition.
Orsino: Duke of Illyria. Absolutely SICK with love. Love sick.