Young says, “From a psychiatric perspective … it could all add up to explain how he could have performed such a horrid act.”
He is charged with a range of arson-related felony counts that could add up to a maximum sentence of more than 24 years in prison.
And if the specifics of the anecdotes she tells are not so accurate—well, to her, they add up to a bigger truth.
late 14c., "to join or unite (something to something else)," from Latin addere "add to, join, attach, place upon," from ad- "to" (see ad-) + -dere comb. form meaning "to put, place," from dare "to give" (see date (n.1)). Meaning "to do sums, do addition" also is from late 14c. Related: Added; adding. To add up "make sense" is from 1942.
attention deficit disorder
Abbreviation of attention deficit disorder