The right to dower could be barred by the wife before marriage accepting a jointure (a life estate in specified lands) in lieu of dower, or by the complicated uses to bar dower invented in the 18th century.
Masking (personality) Masking (Personality Theory) - Masking is a process in which an individual changes or masks his or her natural personality to conform to social pressures, abuse, and or harassment.
A masking agent is a reagent used in chemical analysis which reacts with chemical species that may interfere in the analysis. In sports a masking agent is used to hide or prevent detection of a banned substance or illegal drug like anabolic steroids or stimulants.