Harai Makikomi is a hip sweep with an outer leg placement (harai goshi), while wrapping the arm and falling.

Judo is made up of throwing (nage), grappling (katame or ‘newaza’) and striking (atemi) techniques.

The throwing techniques are split into standing techniques (tachi-waza) and sacrifice [falling] techniques (sutemi-waza). In turn, the standing techniques are split into hand techniques (te-waza), hip techniques (koshi-waza) and foot techniques (ashi-waza).

See a full demonstration of different nage-waza (throwing techniques) at: https://www.youtube.com/watch?v=niPb0NBqBWA