The compound adjective 'well-remembered' is a relatively modern English formation, built from native Germanic and Latinate elements. Its core, 'remember', originates from the Latin 'rememorari', meaning 'to recall to mind', which itself combines the intensive prefix 're-' with 'memor' (mindful). The Germanic adverb 'well', from Old English 'wel' meaning 'in a good manner' or 'thoroughly', is prefixed to intensify the positive quality of the memory. The participial suffix '-ed', of Old English origin, transforms the verbal action into an adjectival state, describing something that has been and continues to be recalled fondly and clearly. Thus, the word's logic moves from the ancient concept of mindful recollection to the modern sense of being held in enduring, favorable memory.

Structure: well (intensifier) + remember (recall) + ed (adjective suffix) - well: Old English; an adverb used as an intensifying prefix meaning 'thoroughly' or 'rightly'. - remember: Latin (re- + memorare); the verb root meaning 'to recall to mind'. - ed: Old English; a suffix forming participial adjectives indicating a state or condition.