• 丈たけ — length (of clothing); height
• 背丈せたけ — one’s height; stature
• 袖丈そでたけ — sleeve length
• 気丈きじょう — stout-hearted; brave; steadfast
• 丈夫じょうぶ — sturdy; solid; durable

丈 is a compact character for measure/height. Think of a straight baseline 一 and a tall mark rising above it — a quick sketch for “how high” or “how long.” From garments (丈 length, 袖丈) to people (背丈), it measures size and leads to the sense “strong, solid” in 丈夫.