お遣い[otsukai] errand
遣り繰り[yarikuri] making do
遣り取り[yaritori] giving and taking
遣り方[yarikata] manner of doing
遣る[yaru] to send

遣す[yokosu] to send
為て遣る[shiteyaru] to do for (someone)
かな遣い[kanazukai] kana orthography
気遣い[kizukai] consideration
気遣う[kizukau] to worry about

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book