consolidation

Concise Oxford English Dictionary © 2008 Oxford University Press:
consolidate /kənˈsɒlɪdeɪt/

▶verb

• 1 make stronger or more solid.

• 2 combine into a single unit.

– derivatives
consolidation noun,
consolidator noun.

– origin C16 (earlier (ME) as consolidation): from L. consolidare, from con- ‘together’ + solidare ‘make firm’ (from solidus ‘solid’).