τέλμα

ατος, τό
A. standing water, pond, marsh, swamp, Ar. Av. 1593, Pl. Phd. 109b, X. Oec. 20.11, Men. Epit. 532, Thphr. HP 1.4.2: pl., low lands subject to inundation, water-meads, Hdt. 2.93, Thphr. Fr. 174.1, Gal. 6.709, 15.121, Jul. Mis. 358a; mud at the edge of a riverbank, Ael. VH 12.46.
II. mud used as mortar, τέλματι χρεώμενοι ἀσφάλτῳ Hdt. 1.179; cf. τελμίς.
2. space pointed with mortar, between the courses of masonry, Procop. Aed. 2.1.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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