anal
Pronunciation: /ˈeɪn(ə)l/
adjective
- relating to or situated near the anus: anal sex
- Psychoanalysis (in Freudian theory) relating to or denoting a stage of infantile psychosexual development in which defecation is the major source of sensuous pleasure and the anus forms the centre of self-awareness.
- informal anal-retentive: he’s anal about things like that

Origin:
mid 18th century: from modern Latin analis, from Latin anus (see anus)