Green’s Dictionary of Slang

nurse v.

1. to cheat or swindle.

[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[UK]Flash Dict. in Sinks of London Laid Open.
[UK]Hotten Dict. of Modern Sl. etc.
[UK]Sl. Dict.

2. for one omnibus to follow a rival closely so as to poach its passengers.

[UK]Morning Chronicle 8 Mar. n.p.: The cause of the delay was that defendant was waiting to nurse one of their omnibuses [F&H].
[UK]Hotten Dict. of Modern Sl. etc. 69: Two omnibuses are placed on the road to nurse, or oppose each opposition ‘buss’, one before, the other behind.
[UK]The Dean of Canterbury in Good Words 197: Many words are by rule hitched off with two commas; one before and one behind; nursed, as the Omnibus Company would call it [F&H].
[UK]Hotten Sl. Dict.
[UK]Echo 7 May 1/4: Another phenomenal witness, a ‘bus’ conductor, did not even know what nursing rivals meant [F&H].
[UK]Daily Tel. 22 Mar. 4/6: A case of alleged nursing by rival omnibuses occupied a large part of the afternoon sitting [F&H].

In phrases