Posthumous \Post"hu*mous\ (?; 277), a. [L. posthumus, postumus, properly, last; hence, late born (applied to children born after the father's death, or after he had made his will), superl. of posterus, posterior. See Posterior.]

1. Born after the death of the father, or taken from the dead body of the mother; as, a posthumous son or daughter.

2. Published after the death of the author; as, posthumous works; a posthumous edition.

3. Being or continuing after one's death; as, a posthumous reputation. --Addison. --Sir T. Browne.

Source: Webster's Revised Unabridged Dictionary (1913)