Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
post-mŏdo (also separately, post mŏdo), adv., afterwards, presently, shortly (mostly poet., and in Livy for postea; not in Plaut., Cic., Cæs., or Quint.): tamen postmodo necesse est doleant, Poll. ap. Cic. Fam. 10, 33, 1: sentiet illa tuas postmodo capta manus, Prop. 2, 10 (3, 1), 18; * Ter. Hec. 2, 1, 11 (Fleck.); Ov. Am. 1, 14, 56; id. A. A. 1, 486: neglegis immeritis nocituram Postmodo te natis fraudem committere? Hor. C. 1, 28, 31: publicum in praesentiā dedecus, postmodo periculum, Liv. 2, 43, 8; 2, 24, 5; 3, 41, 5; 4, 7, 6; Col. 1, 8, 4 al.; cf. postmodum.