Shirabe
序で に

序でついで

Common Noun
English jmdict
1
noun (common) (futsuumeishi) word usually written using kana alone opportunity;occasion;chance
2
noun (common) (futsuumeishi) archaic order;sequence
orig. meaning
3
noun (common) (futsuumeishi) archaic successor
Other forms 序 【ついで】

序でについでに

Common Adverb
English jmdict
1
adverb (fukushi) word usually written using kana alone while (one is at it);when;on the occasion of;at the same time (as);on one's way (to);by the way;incidentally;in passing
ついでに私のも買ってきてくれますか。
Can you buy one for me as well?
Other forms 序に 【ついでに】 (rarely used kanji form)