The Etymology of Strength
The longest common English word with only one vowel, 'strength' has been part of the language since its earliest recorded period. It descends from Old English 'strengþu,' formed by adding the abstract suffix '-þu' to the adjective 'strang' (strong). This word-building pattern was productive in Old English: 'lang' became 'lengþu' (length), 'wid' became 'widþu' (width). The Proto-Germanic ancestor *strangīþō connects to a deeper Indo-European root *strenk-, meaning 'tight' or 'narrow.' That same root produced Latin 'stringere' (to draw tight), which gave English 'strict,' 'string,' 'constrict,' and 'strain.' The semantic journey from tightness to power reveals how early peoples understood bodily strength — not as bulk, but as tension.