burdensome

the word 'burdensome' is a native english formation, combining the old english noun 'byrthen' (a load or weight) with the productive adjectival suffix '-sum'. the core concept of 'burden' has remained remarkably consistent from its germanic roots, originally denoting a physical load carried. the suffix '-some' attaches to nouns to create adjectives indicating a propensity or full of a certain quality. thus, the literal construction 'characterized by a load' logically evolved into the modern abstract sense of 'causing difficulty or worry', seamlessly transferring the concept of physical weight to metaphorical or psychological heaviness.

Structure: burden (load) + some (characterized by) burden (from old english byrthen, meaning a load, weight, duty); some (from old english -sum, an adjective-forming suffix meaning 'characterized by' or 'tending to').