noun coined here
in·VA·tion
Entry legitimised by an invitation the enterer arranged.
Invited intervention: the government that requests the troops already at the border.
Etymologyinvitation + invasion, blended. Both parents share two seams — the in- prefix and the -ion ending — where most blends overlap at one.
NoteThe parents are semantically adjacent: both carry Latin in-, 'into'. Invitation is calling someone in; invasion is going in uninvited. Same act, opposite permission, and the word sits on the hinge. Variant invitasion keeps both parents more audible at one syllable more.
slot 5 · form 4 · clarity 4 · music 4 → 17/25 · one reader's opinion, ranks nothing