Past tense: provided with convenience or made more convenient; accommodated with facilities or amenities (rare/awkward usage).
From 'convenience' as a verb (to make convenient) plus the past tense suffix '-ed.' This is an uncommon formation, as 'convenience' is typically used as a noun.
While 'convenienced' is grammatically awkward in modern English, it shows how creative speakers once were—turning nouns into verbs to describe the act of providing comfort and ease!
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