Many lexicons that don't use the word 'leader' still support authority with terms like chief, subordinate, sovereignty, lord, ruler, master

Focusing on whether lexicons use the specific word 'leader' is misleading. Many lexicons that don't say 'leader' use equivalent terms: chief, subordinate, authority, superior, sovereignty, lord, ruler, master. The egalitarian claim that lexicons don't support 'leader' is technically true for some but substantively false — the same concept is expressed with different vocabulary.