What is the principal basis for terms such as istiʿānah, īdāʿ and rafw?

Iqtibās and Taḍmīn: Quoting Scripture and Incorporating Poetry

• Differences only among Qur’anic recitations
• The affirmation/negation distinction in antithesis
• The extent and manner of borrowed poetic material
• Hadith classification by narrator chronology