ppl. a. [f. ENCUMBER v. + -ING2.] That encumbers.
1641. Milton, Animadv. (1851), 188. Whosoever labours to keep such an incumbring surcharge of earthly things.
1795. Southey, Joan of Arc, I. 404. From his belt he took The encumbering sword.
18389. Hallam, Hist. Lit., IV. IV. vii. 319, note. The feeble encumbering pronoun which.
1872. H. Macmillan, True Vine, vii. 300. These barren, encumbering branches.
Hence Encumberingly adv.