係止 is read as けいし (keishi) and means locking.
けいし
keishi
かんけいしゃいがいたちいりきんし
No Unauthorized Persons
せいしどあつけいすう
coefficient of earth pressure at rest
かかり
connection
かかりちょう
subsection head
かかりいん
person in charge
かかりかん
official in charge
けいそう
dispute
けいすう
coefficient
けいりゅう
mooring
けいごう
joining elements so they mate or hook together (e.g. a clutch)
かかりうけ
(syntactic) dependency
けいそうち
disputed area