secret, conceal
ヒ / ひ.める
secrecy, density (pop), minuteness, carefulness
ミツ / ひそ.か
protect, guarantee, keep, preserve, sustain, support
ホ / たも.つ
hold, have
ジ / も.つ
pledge, promise, vow
ケイ / ちぎ.る
promise, approximately, shrink
ヤク / つづ.まる