[f. STRAY v.2 + AWAY adv.] An animal that strays away; a straggler.
 
1820.  Keats, Isabella, xvii. Quick cats-paws on the generous stray-away.
 
1868.  Browning, Ring & Bk., V. 1198. What did he else but 
 Leave, like a provident shepherd, his safe flock To follow the single lamb and strayaway?