Shirabe
乃至 は

乃至ないし

Common conjunction
English jmdict
1
conjunction word usually written using kana alone from ... to;between ... and
北アメリカでは１つの家に１つないし２つの車庫があるのはよくあることだ。
It is quite common in North America for homes to have a one or two-car garage.
2
conjunction word usually written using kana alone or
バドミントン部はまともな部員が極端に少ないため、ほとんど廃部ないし休部状態だった。
There were so few proper members in the badminton club that it was half-way between dead and 'on break'.