s, e, k, l, n, p, c, i, y are letters that make 'sleepy sickness'
si, SL, IC, sleep, sickness, SI, EE, SS, sleepy, sick, ic, sic, lee, NE, ness, Lee, LE, SLE, Es, Ne, Si are words within 'sleepy sickness'
1 possible definitions for 'sleepy sickness'
Under this definition, sleepy sickness is a noun and has the following properties:
sleeping sickness, epidemic encephalitis, lethargic encephalitis, encephalitis lethargica have the same meaning as 'sleepy sickness'
'sleepy sickness' can be a type of encephalitis, cephalitis, phrenitis.