cat·a·plex·y 
(kătə-plĕk′sē)
(kătə-plĕk′sē)n. pl. cat·a·plex·ies
A sudden loss of muscle tone and strength, usually caused by an extreme emotional stimulus.
[From Greek kataplēxis, fixation (of the eyes), from kataplēssein, to astound, terrify : kata-, intensive pref.; see CATA- + plēssein, plēk-, to strike; see plāk-2 in the Appendix of Indo-European roots.]
cat′a·plectic (-plĕktĭk) adj.
- Indo-European root: kleu-
- Indo-European root: ko-
- Indo-European root: kob-
- Indo-European root: kom
- Indo-European root: konk-
- Indo-European root: koro-
- Indo-European root: kost-
- Indo-European root: kous-
- Indo-European root: krei-
- Indo-European root: kreus-
- Indo-European root: kreuə-
- Indo-European root: ksun
- Indo-European root: kwe
- Indo-European root: kwei-
- Indo-European root: kwei-
- Indo-European root: kweit-
- Indo-European root: kweiə-
- Indo-European root: kwel-
- Indo-European root: kwel-
- Indo-European root: kwen-
- Indo-European root: kwent(h)-
- Indo-European root: kwer-
- Indo-European root: kwes-
- Indo-European root: kwetwer-
- Indo-European root: kwo-