specific - (in some cases accompanied by `to') applying to or characterised by or distinguishing a thing distinct or special or special; "rules with unique application"; "demands unique to The task"; "a specific and in-depth 격투기 account on the accident"

have you any special date in mind ¿tienes en mente alguna fecha concreta or en certain or en especial

specially is much more idiomatic only once the intended sense is specifically The equipment was specially suitable for a remaining-handed operator.