Brewer's: Adonis River
A river in Phoenicia, which always runs red at the season of the year when the feast of Adonis is held. The legend ascribes this redness to sympathy with the young hunter; others ascribe it to a sort of minium, or red earth, which mixes with the water.
Thammuz came next behind, Whose annual wound in Lebanon allured The Syrian damsels to lament his fate In amorous ditties all a summer's day, While smooth Adonis from his native rock Ran purple to the sea, supposed with blood Of Thammuz yearly wounded.
: Paradise Lost, Book 1, line 445, etc. Milton