From a list like http://www.absp.org.uk/words/study2lw.shtml
All 2-letter subwords of these words are valid. There are 280,000 words in the official list, and 5,803 of those are composed entirely of tlws. There are 127 tlws, so if we made our mnemonic out of 6-letter words, we would need 22 words. This is 27 plus IN/OR/ON/ARE for readability, so not so far off.
- ZEALOUS LOYAL FEDAYEE IN BASINET JAMMED YAGI ON NABOBISH GUNYAH
- KOOKY KAMAAINA CHAWED ON PEANUT OR HAREWOOD OR TAXUS
- ZOEAE OR MUREX IN KIDEL ARE TEREFA IN KALI YUG
- FASTIDIOUS LION MUST EAT JOMOS OR TABEFY
BASINET a light helmet, also BASCINET, BASNET [n -S] BOEHMITES (German) a mineral present in bauxite, a hydroxide of aluminium [n] CHAWED CHAW, to chew esp. tobacco [v] FEDAYEE (Arabic) an Arab commando [n FEDAYEEN] GUNYAH A Native Australian's hut [n -S] HAREWOOD stained sycamore wood, used for making furniture [n -S] JOMOS JOMO, a cross between a yak and a cow, also ZHO, DSO, DZHO, DZO [n] KALI (Arabic) the prickly saltwort or glasswort KALI YUG The last of the four ages described in Sanskrit scriptures. KAMAAINA (Hawaiian) a longtime resident of Hawaii [n -S] KIDEL (historical) a stake-fence set in a stream for catching fish, also KIDDLE [n -S] MUREX (Latin) a genus of shellfish, yielding a purple dye [n MUREXES or MURICES] NABOBISH like a nabob [adj] TABEFY to waste away [v TABEFIED, TABEFYING, TABEFIES] TAXUS (Latin) a member of the yew genus of evergreen shrubs [n TAXUS] TEREFA (Hebrew) not ritually clean, not kosher, also TEREFAH, TRAYF, TREF, TREFA, TREFAH, TREIF, TREIFA, TREYF, TREYFA YAGI (Japanese) a type of shortwave antenna [n -S] YUG (Sanskrit) one of the four Hindu ages of the world, also YUGA [n -S] ZOEAE ZOEA, (Greek) the larval stage of crabs, also ZOOEA, ZOOEA [n]