(literary) at, in (a duration of time)

(literary) Alternative form of なぜ (naze)

(done) by; from

(informal) bearing a shocking resemblance

in my opinion; I think; I guess; upon thought; upon reflection; upon contemplation / conceivably; presumably

(reverent) land of the emperor; Japan

elder brother (term of address)

(informal, onomatopoeia) Representing mischievous snickering.

already since long ago

about (in concern with) / (with units) per