Dictionary Definition:
Bandhu [Vedic bandhu, see bandhati & cp. bandhava] 1. a relation, relative, kinsman; pl. bandhū J iv.301; PvA 86 (=ñātī) & bandhavo Nd2 455 (where Nd1 11 in id. p. reads bandhū). -- Ādicca˚ kinsman of the Sun, an Ep. of the Buddha Vin ii.296; A ii.17; Sn 54, 915, 1128, cp. Nd2 152b; Vv 2413; 7810, cp. VvA 116. <-> Four kinds of relations enumd at Nd1 11. viz. ñāti˚, gotta˚, manta˚ (where Nd2 455 reads mitta˚), sippa˚. -- 2. Ep. of Brahmā, as ancestor of the brahmins DA i.254: see below ˚pāda. -- 3. (˚ -- ) connected with, related to, dealing with [cp. Vedic amṛta -- bandhu RV x.725] S i.123 (pamatta˚); 128; Sn 241, 315, 430, 911; J iv.525; Miln 65 (kamma˚); SnA 192 (veda˚.). -- f. bandhunī J vi.47 (said of the town of Mithilā (rāja˚); expld by C. as "rāja -- ñātakeh'eva puṇṇā").
-- pāda the foot of Brahma, from which the Śūdras are said to have originated (cp. Sk. pādaja), in cpd. bandhupād'apacca "offering from the foot of ourkinsman," applied as contemptuous epithet to the Samaṇas by a Brahmin D i.90; M i.334; S iv.117.