1. demote= /dɪˈməʊt $ -ˈmoʊt/ verb [transitive]

to make someone’s rank or position lower or less important  OPP promote

be demoted to something

The sergeant was demoted to private.

Grammar

Demote is often used in the passive.

—demotion /-ˈməʊʃən $ -ˈmoʊ-/ noun

2. statutory= fixed or controlled by law SYN mandatory

statutory employment rights

She’s below the statutory age for school attendance.

—statutorily adverb

3. judicious= done in a sensible and careful way 

SYN wise

judiciously adv.

4. distill= to make a liquid such as water or alcohol more pure by heating it so that it becomes a gas and then letting it cool. Drinks such as whisky are made this way

distillation