Under-sucking

ppl. a. [UNDER-¹ 4 a, b.] a. Sucking from below. b. Sucking down.

1611.  Speed, Hist. Gt. Brit., VII. xxxvii. § 2. 335. Y^e blossoms of vnder-sucking plants.

a. 1885.  Chr. G. Rossetti, Poems (1904), 144/2. Who sinks, uplift from the undersucking silt To set him on Thy rock.