What is the meaning of 座っておいで?


The おいで after the Te-form seems to convey a kind of command. Could you explain
the usages of this word, what part of speech is it and how it differs from the
other kinds of commands?




「[座]{すわ}っておいで。」 = "Go and sit there."

You can say this when both you and the listener (a kid or someone close, not
someone older or higher than yourself) know there is a place to sit down
nearby and that place has already been talked about between the two parties.
It is a casual/friendly imperative. = "Why don't you ~~."

おいで here is short for おいでなさい. It is the honorific お + [出]{い}でる. In the 「Verb +
て + おいで」 form, 「おいで」 is used just like a subsidiary verb.

See definition 二-➁-㋑ in:
<https://kotobank.jp/word/%E5%BE%A1%E5%87%BA%E3%81%A7-216568#E5.A4.A7.E8.BE.9E.E6.9E.97.20.E7.AC.AC.E4.B8.89.E7.89.88>

