1) Blotting out or overshadowing 2) Overshadowing 
• (p. pr. & vb. n.) of Eclipse
eclipse, eclipses, eclipser, eclipsed, eclipsing 1. In astronomy, the partial or complete hiding from view of a celestial body; that is, the Sun or Moon, when another celestial body comes between it and the observer. 2. A loss or blocking of light. 3. A loss of status, power, or favor.