jā́nu n. (rarely m., [MBh. iv, 1115]; [Rājat. iii, 345]) the knee, [RV. x, 15, 6]; [AV. ix f.]; [VS.] &c. (°nubhyām avaniṃ-√ gam ‘to fall to the ground on one's knees’, [MBh. xiii, 935])
(as a measure of length) = 32 Aṅgulas, [Śulbas.]
, [cf. γόνυ; Lat. genu; Goth. kniu; Germ. Knie.]