The Collaborative International Dictionary of English v.0.48:
Sum \Sum\, v. t. [imp. & p. p. Summed; p. pr. & vb. n.
Summing.] [Cf. F. sommer, LL. summare.]
1. To bring together into one whole; to collect into one
amount; to cast up, as a column of figures; to ascertain
the totality of; -- usually with up.
The mind doth value every moment, and then the hour
doth rather sum up the moments, than divide the day.
2. To bring or collect into a small compass; to comprise in a
few words; to condense; -- usually with up.
"Go to the ant, thou sluggard," in few words sums up
the moral of this fable. --L'Estrange.
He sums their virtues in himself alone. --Dryden.
3. (Falconry) To have (the feathers) full grown; to furnish
with complete, or full-grown, plumage.
But feathered soon and fledge
They summed their pens [wings]. --Milton.
Summing up, a compendium or abridgment; a recapitulation; a
r['e]sum['e]; a summary.
Syn: To cast up; collect; comprise; condense; comprehend;
[1913 Webster] Sumac