A kashū (家集), also called a shikashū (私家集) or ie-no-shū (家の集), is a private collection of waka poems compiled by the author of the poems included. The term is used in contrast to chokusenshū, imperially-commissioned collections both written and compiled by multiple people, and shisenshū (私撰集), anthologies of poems by multiple poets privately compiled by a single editor.
References
Kashū (poetry) Wikipedia(Text) CC BY-SA