convenience
noun
[ kənˈviːnɪəns ]
• the state of being able to proceed with something without difficulty.
• "services should be run to suit the convenience of customers, not of staff"
• a public toilet.
• "the large council car park next to the public conveniences"
Origin:
late Middle English: from Latin convenientia, from convenient- ‘assembling, agreeing’, from the verb convenire (see convene).