1829, Various, The Mirror of Literature, Amusement, and Instruction:
Poor fellow! how happy would a companion make you, to whom you could relate your battles, bouts, and courtships; but mum is the order, and Jack is used to an implicit obeyance of head-quarter orders.
1912, W.J. Jackman, Thos. H. Russell, Flying Machines:
One of the instructions given by experienced aviators to pupils, and for which they insist upon implicit obeyance, is: "If your machine gets more than 30 feet high, or comes closer to the ground than 6 feet, descend at once."
1962, Harry Harrison, Planet of the Damned:
The tall soldiers of Nyjord moved in ready obeyance of their commander.
Etymology 2
Misspelling or alteration of abeyance, by association with obey.