roe (n.1) Look up roe at Dictionary.com
"fish eggs," c.1400, from Proto-Germanic *khrugna (cf. Old Norse hrogn, Flemish rog, Middle Low German and Middle Dutch roge, Old High German rogo "roe"), from PIE *qreq- "spawn" (cf. Lithuanian kurkle, Russian krjak "spawn of frogs"). Exact relations of the Germanic words are uncertain.
roe (n.2) Look up roe at Dictionary.com
"small deer," Old English ra, from raha, from Proto-Germanic *raikhon (cf. Old Norse ra, Dutch ree, Old High German reho, German Reh "doe"), perhaps from PIE root *rei- "streaked, spotted."