口くち固がためMeaningsNounSuru verbIntransitive verb1. verbal promise (Dated)2. forbidding someone from telling others (Dated)Kanji used口mouth固solidifyPitch accentくちがためくちがためComposed of口くちmouth; opening; hole; gap; orifice; mouth (of a bottle); spout; nozzle; mouthpiece; gate; …Noun固かためhardening; fortifying; pledge; vow; defense; defence; guardingNoun