1. Paṭighasamphassa is easier.
– Paṭigha is a weaker form of dosa.
– Thus. in samphassa-ja-vedana, paṭighasamphassa can be understood.
2. Adhivacana means “another name” for something.
– For example, danger, suffering, disease, etc, are “other names” for “kāma” or “sensual pleasures.”
– See “Bhaya Sutta (AN 8.56)”
But I have not seen the term “adhivacanasamphassa” in the Tipitaka. Did he give a reference?