1. [OE. es, AS. as.]
The suffix used to form the plural of most words; as in roads, elfs, sides, accounts
2. [OE. -s, for older -th, AS. -[eth].]
The suffix used to form the third person singular indicative of English verbs; as in the falls, tells, sends.
An adverbial suffix; as in towards, needs, always, -- originally the genitive, possesive, ending. See -'s.
© Webster 1913.