ECTO
4 letters
Historical clue formulations
- Prefix with parasite — 2024-03-30
- ___-1 ("Ghostbusters" vehicle) — 2022-02-09
- ___ Cooler, "Ghostbusters"-inspired Hi-C flavor — 2021-07-07
- Prefix with -morph — 2021-06-29
- Prefix with -plasmic — 2021-04-15
- Prefix with plasm — 2019-12-02
- Outside: Prefix — 2019-08-06
- Outside: Prefix — 2018-08-26
- Prefix with -derm — 2017-03-25
- Beginning to morph? — 2016-08-12
- Prefix with -plasm — 2016-05-22
- Prefix with -plasm — 2016-01-06
- Outside: Prefix — 2014-03-07
- Prefix with -plasm — 2013-08-04
- Prefix with -plasm — 2013-04-21
- Opposite of endo- — 2013-04-02
- Outer: Prefix — 2012-06-17
- Outer: Prefix — 2011-08-31
- Outside: Prefix — 2011-08-10
- Prefix with -morph — 2011-07-29
- Prefix with -dermal — 2011-04-21
- Outer: Prefix — 2011-03-22
- ___-1 ("Ghostbusters" vehicle) — 2010-11-25
- Prefix with plasm — 2010-07-25
- Opening for outside? — 2009-03-11
- Outer: Prefix — 2009-01-13
- Outer: Prefix — 2008-11-17
- Outer: Prefix — 2007-08-12
- Prefix with -derm — 2006-09-17
- Plasm prefix — 2006-08-31
- Prefix with morph — 2005-05-01
- Prefix with plasm — 2005-04-21
- Opposite of endo- — 2005-01-20
- Prefix with plasm — 2004-10-12
- Prefix with plasm — 2004-07-11
- Outer: Prefix — 2004-04-07
- Prefix with plasm — 2004-04-06
- Opposite of endo- — 2004-02-18
- Outer: Prefix — 2003-10-30
- Start to morph? — 2002-11-17
- Outer: Prefix — 2002-05-24
- Prefix with parasite — 2002-03-22
- Outside opening? — 2002-03-14
- Prefix with parasite — 2001-11-03
- Prefix with plasm — 2000-11-14
- Outer: Prefix — 2000-06-02
- Opposite of endo- — 1998-08-31
- Prefix with plasm — 1998-02-24
- Prefix with -therm — 1997-08-08
- Outside: Prefix — 1997-01-14