AUXOTROPHIC

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airt arch arco atop auto caph capo carp cart chai chao chap char chat chia chip chit chop ciao coat coax coho coir coop coot coup coxa crap crit crop crux curt hair harp hart haut hoar hoax hoop hoot hora hour huic hurt iota itch oath ohia opah orca otic ouch ouph pact pair part path phat phot phut pica pita pith poco pooh poor port pour pout prao prat prau proa ptui puri rapt rath rato rich riot root rota roti roto roup rout roux ruth tach taco tahr taro tarp taxi thio thir thou thro thru tiro toph topi topo tora torc tori toro tour trap trio trip trop uric