Word: mistressing
Part of speech: Verb
Syllables: mi
stre
ssing
Definition: Present participle of mistress; a woman schoolteacher (especially one regarded as strict)
Morphemes:
Affix: mistresse
Language: en
PoS: Noun
Meaning: archaic spelling of mistress.
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form present participles of verbs.