迭

The core sense is alternation or turn-taking (back-and-forth, one after another). This encompasses:

1. Alternation/Reciprocity: Action performed by two or more parties in succession.

2. Substitution/Replacement: To replace someone or succeed them in a position.

3. Frequency: Occurrence as a result of an alternating or cyclical process.

• Adverbial: Modifies a verb to describe the manner of action (e.g., "alternately attacking").
• Verbal: In formal or administrative contexts, functions as a verb meaning "to replace" or "to succeed."

• vs. 屢 (lǚ): 屢 refers to the count of occurrences (many times); 迭 refers to the pattern of occurrence (alternately).
• vs. 繼 (jì): 繼 typically denotes linear succession (A → B → C), whereas 迭 often implies a reciprocal or cyclical exchange (A ↔ B).

Tang-period reading: dhet; Fanqie: 徒結.

If the passage involves multiple actors, prioritize "in turn" or "alternately." If only one subject is present, "repeatedly" may be the most viable translation, though the underlying sense of a shifting state or cycle should be considered.