11 letters · 15 points in Scrabble
noun activity involved in maintaining something in good working order
noun means of maintenance of a family or group
noun court-ordered support paid by one spouse to another after they are separated
originFrom Middle English mayntenaunce, from Old French maintenance, from maintenir, from Latin manus tenēre (“to hold in the hand”). By surface analysis, maintain + -ance. Note that maintain has undergone a sound and spelling change, hence is spelt with -tain-, rather than the -ten- still found in maintenance.
Etymology from Wiktionary, CC BY-SA 3.0