We don't have synonyms for latten yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are batten, flatten and fatten.
(n) :
(archaic or historical) An alloy of copper and tin, similar to bronze, with a sufficient portion of tin to make it a pewter-like color with yellowish tinge (rather than the brownish-gold color of bronze of higher copper content), once used in thin sheets and for domestic utensils and light-duty tools.
(n) :
(archaic or historical) An alloy of copper and tin, similar to bronze, with a sufficient portion of tin to make it a pewter-like color with yellowish tinge (rather than the brownish-gold color of bronze of higher copper content), once used in thin sheets and for domestic utensils and light-duty tools.