1) NY congressman Houghton 2) Amas preceder 3) Basic language lesson word 4) Basic language trio opener 5) Before amas 6) Beginning Latin word 7) Caesarean woo word 8) Classical conjugation opener 9) Common latin verb 10) Conjugation starter 11) Conjugative series opener 12) Diamond center 13) Elementary Latin work Found on https://www.crosswordclues.com/clue/amo