the world > relative properties > wholeness > mutual relation of parts to whole > condition or state of being mixed or blended > mix or blend [verb (transitive)] > add as ingredient to a mixture > qualify by admixture > adulterate > in order to increase weight (2)
To adulterate by adding something to increase the weight of the article; to make (light or thin wine) appear full-bodied by adulteration.
technical. To add weight to (an inferior commodity) by the admixture or use of an adulterant.