noun
traveling bag; hold-all
A somewhat old-fashioned term for a bag used when traveling, often a large cloth or leather bag that holds various items. Not commonly used in modern everyday conversation; 旅行かばん or ボストンバッグ are more typical today.
祖母は合切袋に着替えを詰めて旅に出た。
My grandmother packed a change of clothes in her traveling bag and set off on a journey.
合切 (がっさい) means 'all, everything', and 袋 (ぶくろ) means 'bag'. The word originally referred to a bag into which one puts all one's belongings for a journey. The exact historical derivation of 合切 is uncertain, but it is thought to be a compound of 合 (together) and 切 (cut/decide), implying 'settling everything together'.