Other forms: completions
Completion is the finishing of something. On completion, the completion date, near completion.
In buying a house it is the exact moment the money changes hands and the keys are yours, which is a different day from exchange of contracts. On completion is the standard contractual phrase for when something becomes due.
1nouncompletionThe finishing of something.
“The new bridge is due for completion next spring.”
completion is a finishing.
Latin completio comes from complere, to fill up — com plus plere, to fill. Complete and plenty are relatives.
Latin
completio
English, today
completion
Built from
Latin completio, from compleo (“to fill up, complete”). by surface analysis, complet(e) + complete + ion.
Etymology from Wiktionary, CC BY-SA