infuse

Concise Oxford English Dictionary © 2008 Oxford University Press:
infuse/ɪnˈfjuːz/

▶verb

• 1 fill with a quality: a play infused with humour.

  ■ instil with (a quality).

• 2 soak (tea, herbs, etc.) to extract the flavour or healing properties.

• 3 Medicine allow (a liquid) to flow into a vein or tissue.

– derivatives
infuser noun.

– origin ME: from L. infus-, infundere ‘pour in’.