queasy

Concise Oxford English Dictionary © 2008 Oxford University Press:
queasy/ˈkwiːzi/

▶adjective (queasier, queasiest)

• 1 nauseous.

  ■ inducing nausea.

• 2 slightly nervous or worried.

– derivatives
queasily adverb,
queasiness noun.

– origin ME queisy, coisy, of uncertain origin; perh. rel. to OFr. coisier ‘to hurt’.