The story
- Middle Dutch · calque ofstēdig
- Old English · inherited fromstæþþiġ
- Middle English · inherited fromstedy
- English todaysteady
From Middle English stedy, studi, stidiȝ, perhaps continuing Old English stæþþiġ, ġestæþþiġ (“steadfast, stable, firm, staid”), equivalent to stead + -y; or calquing Middle Low German or Middle Dutch stēdig. Cognate with Saterland Frisian stoadig (“steady”), West Frisian stadich (“slow”), Danish stedig, stadig, steeg, Swedish stadig, Icelandic stöðugur, German stätig, stetig. Compare also Old English ġestedegian (“to bring to a standstill”) and Dutch steeds (“more and more”). Adjective sense 8 is a semantic loan from Singapore Hokkien 在 (chāi, “confident, skilled”, literally “steady”).
Etymology from Wiktionary, CC BY-SA 4.0.