fre·quen·ta·tive 
(frē-kwĕntə-tĭv) Grammar
(frē-kwĕntə-tĭv) Grammar adj.
Expressing or designating repeated action.
n.
A frequentative verb or verb form.
[Latin frequentātīvus, from frequentātus, past participle of frequentāre, to repeat, from frequēns, frequent-, frequent.]