leger vs daybook

leger and daybook both are nouns.

Word	Noun	Adjective	Verb	Adverb
leger	Yes	No	No	No
daybook	Yes	No	No	No

As nouns, daybook is a hyponym of leger; that is, daybook is a word with a more specific, narrower meaning than leger:

Other hyponyms of leger include cost ledger, general ledger, subsidiary ledger, journal.

leger (noun)	daybook (noun)
a record in which commercial accounts are recorded	an accounting journal as a physical object
	a ledger in which transactions have been recorded as they occurred