や、やいなや => As soon as A, B N1
Time, Situation
と[思「おも」]いきや => Even though A (was thought/expected), different result B N1
Contrast/Surprise
いまや => now, these days N3
Compare
や => ... or... N5
Line up, list
や否や => as soon as; the moment ~ N1
や => and; or N5
もはや~ない => no longer; not anymore N1
Invariant
やっと => Eventually... N4
~やまない      => always; never stop; can't help but ~ N1
~やまない => always; never stop; can't help but ~ N1
Emotional
お => Prefix N5
Respectful, humble
お~願います => please do (A) N2