Hauch

noun
  1. A slight breath or breeze; a gentle exhalation of air. noun
    The hauch of wind was barely enough to rustle the leaves.
    She felt a hauch of cool air as she opened the window.
  2. A faint trace or suggestion of something. noun
    There was a hauch of lavender in the air, hinting at the nearby garden.
    The painting had a hauch of melancholy, evoking a sense of nostalgia.