Part of speech: Adjective (satellite)
given or giving freely
Example: was a big tipper; the bounteous goodness of God; bountiful compliments; a freehanded host; a handsome allowance; Saturday's child is loving and giving; a liberal backer of the arts; a munificent gift; her fond and openhanded grandfather
bounty – A related word in the same word family.
ous – A related word in the same word family.
English spelling is irregular because it preserves pronunciations from multiple historical periods simultaneously.