V on n
II.2 The 'enlarge' group
These verbs are concerned with saying more about a topic or adding details.
Mr Dienstbier was enlarging on proposals he had made to members of the Royal Institute of International Affairs.
These verbs are sometimes followed by upon instead of on.
elaborate embroider enlarge expand
Georg Simmel, a colleague of Weber's, expanded upon this concept in his essay, 'The Web of Group Affiliations'.