Taisha

Taisha ( 大斜, great slant) is an old term for large knight's move, now superseded by ogeima. Colloquially, it is shorthand for taisha joseki and it has survived in this context.

Taishagake  

This move, a taishagake^[1] starts the classic taisha joseki.

Taishagake - 2  

This move would be referred to as takamoku taishagake.

[1] This term is a combination of taisha and kake.