Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "syntactics":
   IC analysis, appositive, attribute, attributive, bowwow theory,
   comparative linguistics, complement, construction modifier,
   cutting, deep structure, derivation, descriptive linguistics,
   dialectology, dingdong theory, direct object, etymology, filler,
   form-function unit, function, glossematics, glossology,
   glottochronology, glottology, grammar, graphemics,
   historical linguistics, immediate constituent analysis,
   indirect object, language study, levels, lexicology,
   lexicostatistics, linguistic geography, linguistic science,
   linguistics, mathematical linguistics, modifier, morphology,
   morphophonemics, object, paleography, philology, phonetics,
   phonology, phrase structure, predicate, psycholinguistics,
   qualifier, ranks, semantics, shallow structure, slot,
   slot and filler, sociolinguistics, strata, structuralism,
   structure, subject, surface structure, syntactic analysis,
   syntactic structure, syntax, tagmeme, transformational linguistics,
   underlying structure, word arrangement, word order