經年累月

Sacred texts or classics; to pass through or undergo; warp threads in weaving; longitude; channel in TCM; menstruation; surname.

year; age; harvest; time period; surname Nian surname

Tired or weary; to strain or wear out; to work hard; to accumulate or involve; continuous or repeated; rope or to bind.

Moon; month; monthly; moonlight; a surname; a radical component.