accroaching
/əˈkrəʊtʃɪŋ/Now historical
noun
1The act of acquiring or taking for oneself (especially wealth or property). rare.
2The seizing or usurping of sovereign power.
Origin
Late Middle English; earliest use found in John Lydgate (c1370–c1449), poet and prior of Hatfield Regis. From accroach + -ing.